Device (10) and method for winding/unwinding rolled products (20). The device (10) is interposed between a rolling unit located upstream (102) and a rolling unit located downstream (105). The device (10) comprises a heating furnace (11) and a support structure (16) disposed outside the heating furnace (11). On the support structure (16), substantially in a diametrically opposite position, two winding/unwinding drums (18a, 18b) are assembled, positioned inside the furnace (11). The support structure (16) is selectively rotating to alternatively dispose a first of the two drums (18a or 18b) in its winding position or in its unwinding position of a reel (29). A second of the two drums (18b or 18a) consequently assuming the opposite unwinding or winding position.

A device for winding strip-shaped material onto at least one reel (10) comprises a support arm (11) that is movable relative to the machine frame (12) and has at least one horizontal reel shaft (13) for holding the reel (10). The reel shaft (13) holding the reel is made to rotate by at least one rotary drive (14). A release mechanism is provided for releasing the reel (10) when the support arm (11) moves relative to the machine frame (12). In order to design a device that is better adapted to the specificities of rigid materials and to greater weights of the strip-shaped material, the support arm (11) supporting the reel when the strip-shaped material is wound onto the reel simultaneously forms the release mechanism, and a linear movement mechanism (15) is provided for moving the support arm (11) parallel to the reel shaft (13) and transversely to a strip feeding mechanism (16) in order for the reel to be released.

A reversing reel includes a rotor, on which a reel mandrel with a rotary drive for winding strip into a coil is eccentrically arranged. A driven mandrel support device includes a mandrel support that has a bearing head for supporting a free end of the reel mandrel. The bearing head is movable with the reel mandrel when the reel mandrel is transferred from an initial-winding position into a final-winding position. The mandrel support is a first piston-cylinder arrangement, and the mandrel support is supported in a pivotable manner via a mandrel-support bearing on a slide that is movable tangentially to a circular path of the reel mandrel. The inclination of the mandrel support and the position of the bearing head are adjustable such that the mandrel support is oriented in accordance with a resultant force from the weight force of the coil and the tensile force on the strip.

A reversing reel includes a rotor, on which a reel mandrel with a rotary drive for winding strip into a coil is eccentrically arranged. A driven mandrel support device includes a mandrel support that has a bearing head for supporting a free end of the reel mandrel. The bearing head is movable with the reel mandrel when the reel mandrel is transferred from an initial-winding position into a final-winding position. The mandrel support is a first piston-cylinder arrangement, and the mandrel support is supported in a pivotable manner via a mandrel-support bearing on a slide that is movable tangentially to a circular path of the reel mandrel. The inclination of the mandrel support and the position of the bearing head are adjustable such that the mandrel support is oriented in accordance with a resultant force from the weight force of the coil and the tensile force on the strip.

In order to increase the operational safety of an unreeling apparatus and an unreeling method at high working speed, an unreeling apparatus for unreeling a ring of wire along a pull-off direction, having at least two reel crowns, which can each be brought into a pull-off position and into a preparation position and/or loading position by way of a displacement device, includes a safety apparatus having an overload safety device and having a safety guide track, which has a directional component that faces in the pull-off direction and acts independently of the other reel crown, at least for the reel crown situated in the pull-off position, wherein the overload safety device holds the reel crown situated in the pull-off position in the pull-off position and, in the event of an overload, releases the reel crown situated in the pull-off position into the safety guide track.

In order to increase the operational safety of an unreeling apparatus and an unreeling method at high working speed, an unreeling apparatus for unreeling a ring of wire along a pull-off direction, having at least two reel crowns, which can each be brought into a pull-off position and into a preparation position and/or loading position by way of a displacement device, includes a safety apparatus having an overload safety device and having a safety guide track, which has a directional component that faces in the pull-off direction and acts independently of the other reel crown, at least for the reel crown situated in the pull-off position, wherein the overload safety device holds the reel crown situated in the pull-off position in the pull-off position and, in the event of an overload, releases the reel crown situated in the pull-off position into the safety guide track.

A method of feeding an elongate workpiece to a forming machine includes: providing first and second feed units, wherein each of the feed units has a receiving device that receives a workpiece stock in a coil, and a straightening device downstream of the receiving device that straightens the workpiece before it enters the forming machine, wherein the first and second feed units are arranged on a common platform movable between first and second working positions, wherein, in the first working position of the platform, the first feed unit is arranged in a working position suitable for transferring workpiece portions to the forming machine, and the second feed unit is arranged in a setting-up position, and, in the second working position of the platform, the second feed unit is arranged in the working position and the first feed unit in a setting-up position.

A device for winding strip-shaped material onto at least one reel (10) comprises a support arm (11) that is movable relative to the machine frame (12) and has at least one horizontal reel shaft (13) for holding the reel (10). The reel shaft (13) holding the reel is made to rotate by at least one rotary drive (14). A release mechanism is provided for releasing the reel (10) when the support arm (11) moves relative to the machine frame (12). In order to design a device that is better adapted to the specificities of rigid materials and to greater weights of the strip-shaped material, the support arm (11) supporting the reel when the strip-shaped material is wound onto the reel simultaneously forms the release mechanism, and a linear movement mechanism (15) is provided for moving the support arm (11) parallel to the reel shaft (13) and transversely to a strip feeding mechanism (16) in order for the reel to be released.

A mobile factory of steel sheet coil helical pipe includes a factory for the production of helical pipes that can be mounted on trailers, rafts, or container-type structures that is distinguished by its high production speed and use of steel sheet coils of up to 1 possible thanks to the use of an optional coil driver, a beveler and a wire welding system that may contain two, three, four, or five welding wires per pass (internal and external).

A coiling system (1) and a method for coiling a hot rolled product, the system comprising:a base assembly (3) comprising a base plate (6), a central drum (7) extending from the base plate along a vertical axis, and a receiving sleeve (8) arranged outside of said central drum,a support structure (2) configured to support the base assembly and comprising a first drive mechanism configured to rotate the base assembly around the vertical axis,a feeding device (4) configured to feed hot rolled product to the base assembly so as to form a coil (17), wherein the receiving sleeve is configured to receive a first end of the hot rolled product landing on said base plate so that a coil starts to form inside of said receiving sleeve and outside of said central drum, the base assembly being releasably connected to the first drive mechanism so that the base assembly, after coiling, may be removed from the support structure.