A method and apparatus for applying a cap to a container may include arranging a first cap in relation to the neck portion of a first container, such that a threaded portion of the first cap faces a complementary threaded neck portion of the first container. Further, a symmetry axis of the first cap and a symmetry axis of the neck portion of the first container may be aligned. The first cap may be rotated around its symmetry axis to a pre-recorded initial angular position. The first cap may be applied to the neck portion by moving the cap towards the threaded neck portion or vice versa along their symmetry axes and by rotating the first cap in a direction of engagement with the threaded neck part. A path length of the first cap may be recorded in relation to its initial angular position after which it has completely engaged the complementary threaded neck portion and reached a bottom part of the neck portion. If the recorded path length for the first cap deviates from a predefined value, the initial angular position of a second cap may be adjusted to a new initial angular position.

A method and apparatus for applying a cap to a container may include arranging a first cap in relation to the neck portion of a first container, such that a threaded portion of the first cap faces a complementary threaded neck portion of the first container. Further, a symmetry axis of the first cap and a symmetry axis of the neck portion of the first container may be aligned. The first cap may be rotated around its symmetry axis to a pre-recorded initial angular position. The first cap may be applied to the neck portion by moving the cap towards the threaded neck portion or vice versa along their symmetry axes and by rotating the first cap in a direction of engagement with the threaded neck part. A path length of the first cap may be recorded in relation to its initial angular position after which it has completely engaged the complementary threaded neck portion and reached a bottom part of the neck portion. If the recorded path length for the first cap deviates from a predefined value, the initial angular position of a second cap may be adjusted to a new initial angular position.

The present invention concerns a motion transmission group for capping heads for screw caps. This group comprises a device for applying in use a predefined axial load to means of axial engagement of the caps which a capping head associated in use with said group is provided with. The device comprises at least one axially pre-loaded compression spring so as to generate in use this predefined axial load. The device is separable from the main structure of the transmission group as a single body, with the aforesaid at least one spring maintained associated with a support structure of the device in pre-loaded condition by means of two axial positioning portions to allow the replacement of the device with a structurally similar device, but suitable to generate in use a different axial load.

An actuation unit for a capping head for the application of caps on containers or bottles, as well as to a capping head using such a unit, are provided. The actuation unit for a capping head for the application of caps on containers or bottles comprises at least two actuators, of which a first actuator is adapted to impart a translational displacement along a closing axis and a second actuator is adapted to impart a rotational movement about the closing axis, each actuator of the at least two actuators causing the rotation of a first shaft and a second shaft, respectively, both arranged coaxial to the closing axis, and is characterized in that the shafts of the at least two actuators are placed side by side along the axis and are mutually connected by means of at least one rotation decoupling joint.

Methods of sealing a metallic container are provided. More specifically, the present invention relates to methods that reduce the amount of force applied to a metallic bottle to seal the metallic bottle with a ROPP closure. The methods include use of a capping apparatus that may include more thread rollers than known capping apparatus. Optionally, the thread rollers may use more forming passes to form threads on the ROPP closure. The capping apparatus may also rotate one or more of the ROPP closure and the metallic container in a closing direction before the metallic container is discharged. In one embodiment, the thread rollers form the closure threads before or after a pilfer roller applies a sideload to the ROPP closure.

A capping unit (100) for articles such as containers and/or bottles in general, of the type including at least one capping group (3) bearing one or more capping heads (8) for screwing caps (6) or capsules on the articles moved by at least one transport line (4). It includes at least one capping heads store (19), adapted to retain a series of capping heads (8), in order to allow the rapid and automatic exchange and substitution of the spindles (25) of the capping group (3); the capping group (3) being moved by an associated motorization, up to reaching the store (19) such to store and pick up, automatically from the group (3) itself the suitable capping head (8) as a function of the size of the caps (6) or capsules to be screwed.

A capping unit (100) for articles such as containers and/or bottles in general, of the type including at least one capping group (3) bearing one or more capping heads (8) for screwing caps (6) or capsules on the articles moved by at least one transport line (4). It includes at least one capping heads store (19), adapted to retain a series of capping heads (8), in order to allow the rapid and automatic exchange and substitution of the spindles (25) of the capping group (3); the capping group (3) being moved by an associated motorization, up to reaching the store (19) such to store and pick up, automatically from the group (3) itself the suitable capping head (8) as a function of the size of the caps (6) or capsules to be screwed.

An automated device for producing a closed part, commencing with an open part having a cap joined with a hinge to a body, the device comprising: a tool having a guide surface defined in an operating plane substantially orthogonal to a hinge axis; a part gripper disposed on a computer numerically controlled shuttle, the part gripper operable to: select an open part from a stream of identical open parts; engage one of: the cap; and the body, on a start point on the guide surface; slide the open part, within the operating plane from the start point to a finish point on the guide surface, to rotate the cap about the hinge axis from an open position to a closed position relative to the body; and release the closed part from the part gripper at a release station.

An automated device for producing a closed part, commencing with an open part having a cap joined with a hinge to a body, the device comprising: a tool having a guide surface defined in an operating plane substantially orthogonal to a hinge axis; a part gripper disposed on a computer numerically controlled shuttle, the part gripper operable to: select an open part from a stream of identical open parts; engage one of: the cap; and the body, on a start point on the guide surface; slide the open part, within the operating plane from the start point to a finish point on the guide surface, to rotate the cap about the hinge axis from an open position to a closed position relative to the body; and release the closed part from the part gripper at a release station.

A magnetic screwdriver device includes one pad without magnetism, one driving shaft, and one driven shaft. The two shafts, which have magnetic attraction between each other, are disposed on opposite sides of the pad respectively and attract to each other. The driving shaft is used to transmit torque to actuate the driven shaft rotation. When the torque out of predetermined value overcomes the friction force between the driven shaft and the pad, the driven shaft will be stop.