A device for cutting a preferably thick-walled, extended pipe to length, has at least one cutting tool and a receiving unit for the cutting tool. The cutting tool is radially movable in relation to the extrusion axis and is rotatable via further means about the pipe to be cut to length, in order to cut the pipe to length. The receiving unit may be connected by means of a receiving disc to a sleeve via a ring element, wherein linear guiding elements are arranged on said sleeve parallel to the extrusion axis, and wherein at least four linear guiding elements are evenly distributed around the circumference of the sleeve.

A machine is shown having a winding unit (3) and a cutting unit (7) to cut a tube (T) being formed around a mandrel (5). The cutting unit (7) has a rotating cutting blade (9) provided with motion along a circular trajectory, defined by means of a system of cross guides and a fastening to a center of a circular trajectory. The position of the center (33B) of the circular trajectory of the rotating cutting blade (9) is changed according to the direction of movement of the blade with respect to the mandrel, so that the rotating cutting blade (9) cuts the tube (T) during a forward movement and is released form the tube during a backward movement. Methods for production of tubes by means of helical winding of one or more strips of web material around a mandrel are shown as well.

A machine is shown having a winding unit (3) and a cutting unit (7) to cut a tube (T) being formed around a mandrel (5). The cutting unit (7) has a rotating cutting blade (9) provided with motion along a circular trajectory, defined by means of a system of cross guides and a fastening to a center of a circular trajectory. The position of the center (33B) of the circular trajectory of the rotating cutting blade (9) is changed according to the direction of movement of the blade with respect to the mandrel, so that the rotating cutting blade (9) cuts the tube (T) during a forward movement and is released form the tube during a backward movement. Methods for production of tubes by means of helical winding of one or more strips of web material around a mandrel are shown as well.

A flying punch and cutoff machine that performs an operation on a moving item that moves at a line speed comprises a support assembly; a carriage assembly movably supported by the support assembly; a tooling assembly supported by the carriage assembly, the tooling assembly including a tool to perform an operation on the moving item; a roller rack and pinion mechanism supported by the support assembly and configured to impart motion to the carriage assembly; and a controller configured to control the roller rack and pinion mechanism so that a line speed of the carriage assembly and tool matches the line speed of the moving item so that the operation is performed on the moving item with that no relative motion occurring between the moving item and the tool.

A flying punch and cutoff machine that performs an operation on a moving item that moves at a line speed comprises a support assembly; a carriage assembly movably supported by the support assembly; a tooling assembly supported by the carriage assembly, the tooling assembly including a tool to perform an operation on the moving item; a roller rack and pinion mechanism supported by the support assembly and configured to impart motion to the carriage assembly; and a controller configured to control the roller rack and pinion mechanism so that a line speed of the carriage assembly and tool matches the line speed of the moving item so that the operation is performed on the moving item with that no relative motion occurring between the moving item and the tool.

The present invention relates to an electrode cutting apparatus including a separated foreign matter removal unit capable of immediately removing separated foreign matter generated at the time of electrode cutting through a blow unit and a suction unit configured to be repeatedly operated and stopped according to an electrode cutting operation in order to remove separated foreign matter generated when the electrode cutting apparatus performs electrode cutting.

The present invention relates to an electrode cutting apparatus including a separated foreign matter removal unit capable of immediately removing separated foreign matter generated at the time of electrode cutting through a blow unit and a suction unit configured to be repeatedly operated and stopped according to an electrode cutting operation in order to remove separated foreign matter generated when the electrode cutting apparatus performs electrode cutting.

A flying punch and cutoff machine that performs an operation on a moving item that moves at a line speed includes a support assembly; a carriage assembly movably supported by the support assembly; a tooling assembly supported by the carriage assembly, the tooling assembly including a tool to perform an operation on the moving item; a roller rack and pinion mechanism supported by the support assembly and configured to impart motion to the carriage assembly; and a controller configured to control the roller rack and pinion mechanism so that a line speed of the carriage assembly and tool matches the line speed of the moving item so that the operation is performed on the moving item with that no relative motion occurring between the moving item and the tool.

A flying punch and cutoff machine that performs an operation on a moving item that moves at a line speed includes a support assembly; a carriage assembly movably supported by the support assembly; a tooling assembly supported by the carriage assembly, the tooling assembly including a tool to perform an operation on the moving item; a roller rack and pinion mechanism supported by the support assembly and configured to impart motion to the carriage assembly; and a controller configured to control the roller rack and pinion mechanism so that a line speed of the carriage assembly and tool matches the line speed of the moving item so that the operation is performed on the moving item with that no relative motion occurring between the moving item and the tool.

A blade driving apparatus configured to drive a blade of a cutting device to cut a web and includes an anvil and a slide assembly. The slide assembly includes a slide rail and a slide block that are slidably connected to each other. The slide block is connected to the anvil, and the slide block and the anvil move back and forth relative to the slide rail along a travel direction of the web. At least one of the slide rail or the slide block is made of a non-metallic material.