A method for providing rolls of material for use in sheet form, particularly aluminum for food uses, comprising a step of rewinding the material for use in sheet form in order to form a roll; the rewinding step is provided by winding the material for use in sheet form directly on a rewinding shaft, with the material for use in sheet form in contact with a cylindrical outer lateral surface of the rewinding shaft, which is actuated with a rotary motion about its longitudinal axis, so as to obtain a coreless roll.

The invention relates to a roll making apparatus comprising spindles optionally having apertures for pressurized air and/or for applying a vacuum, the spindles being movable between a retracted position and an extended position, a roll engaging face configured to engage a roll carried by a spindle, upon the spindle carrying said roll moving to said retracted position, to move the roll relative to the spindle.

A method for providing rolls of material for use in sheet form, particularly aluminum for food uses, comprising a step of rewinding the material for use in sheet form in order to form a roll; the rewinding step is provided by winding the material for use in sheet form directly on a rewinding shaft, with the material for use in sheet form in contact with a cylindrical outer lateral surface of the rewinding shaft, which is actuated with a rotary motion about its longitudinal axis, so as to obtain a coreless roll.

Winder for an endless lane of a plastic web (2), with a revolving unit (6, 6, 55, 90), which is constructed so as to be rotatable about its axis (16) and has at least two winding shafts (10 to 12, 10 to 12) running parallel to its axis, onto which winding cores (17) can be loaded, then wound with the web (2) to a roll (18), finally unloaded therefrom again as finished rolls (18), wherein on both sides of the revolving unit (6, 6, 50, 90) support arrangements are arranged, in which the winding shafts (10 to 12, 10 to 12) are supported at their corresponding ends therein, and wherein the support for one end of the winding shafts (10 to 12, 10 to 12) is constructed so as to be detachable, such that the respective winding shaft (10 to 12, 10 to 12), with released support, can be loaded and unloaded from this end, characterized in that the detachably constructed support arrangements each have a gripper arrangement (36 to 38) with a two-armed scissor unit (39 to 41), the scissor arms (42, 43) of which surround the winding shaft (10 to 12, 10 to 12) in the closed position and are pivoted away therefrom in the open position.

The invention relates to a roll making apparatus comprising spindles optionally having apertures for pressurized air and/or for applying a vacuum, the spindles being movable between a retracted position and an extended position; a roll engaging face configured to engage a roll carried by a spindle, upon the spindle carrying said roll moving to said retracted position, to move the roll relative to the spindle.

An apparatus (100) for making a coil (B) comprises a feed unit (2) configured to feed at least one strip-shaped article (N) and a winding unit (1). The winding unit includes a plurality of winding heads (10) and a movement device for moving (3) said winding heads (10) configured to displace said winding heads (10) along a working path (P). Each winding head (10) is configured to wind said strip-shaped article (N) so as to make said coil (B) during a displacement, carried out by said movement device (3), of the winding head (10) along an operative segment (P1) of the working path (P).

An apparatus (100) for making a coil (B) comprises a feed unit (2) configured to feed at least one strip-shaped article (N) and a winding unit (1). The winding unit includes at least a first winding head (10A) and a second winding head (10B) and a movement device (3) of said winding heads configured to displace said winding heads (10) along a working path (P). The distance between the first winding head (10A) and the second winding head (10B) along said working path (P) may be varied.

An apparatus for making a coil comprises a feed unit configured to feed at least one strip-shaped article and a winding unit. The feed unit comprises a coupling device configured to couple said strips in said strip-shaped article. The winding unit includes at least one winding head. Each winding head is configured to wind said strip-shaped article so as to make said coil during a displacement, carried out by said movement device, of the winding head along an operative segment of the working path. The coupling device is configured such as to couple said strips in said strip-shaped article during a respective displacement along an operative path between a first position and a second position, which are distinct from each other.

A winder applied can include a turret part configured to hold a running film roll and a standby film roll, and a leading part including a head part configured to sense a finishing tape attached to an end side of a thin film wound on the standby film roll, grip the finishing tape, and remove the finishing tape from the standby film roll. The head part can include a head body part, a sensing unit disposed on the head body part, and a tape adsorption part disposed on the head body part. The tape adsorption part may be configured to move to a position of the finishing tape sensed by the sensing unit, temporarily couple to the finishing tape, and remove the finishing tape from the end side of the thin film wound on the standby film roll. The sensing unit may be configured to sense the finishing tape.

Described herein is a sheet supply apparatus for continuously supplying sheets while splicing the leading edge of the sheet of a standby roll to the trailing end of a sheet being unwound from a working roll by using an auto splicer, the sheet supply apparatus including: a turret unwinder provided with fixation chucks that each fix both ends of a paper tube, and configured to switch the positions of the standby and working rolls; a detector configured to detect the position of one of both axial ends of the standby roll; a corrector configured to be connected to each of the fixation chucks and to correct the position of the standby roll; and a controller configured to align an end of the standby roll so that the end of the standby roll is aligned with the end of the working roll while correcting the position of the standby roll.