A capping head for applying pre-threaded caps to containers includes a rotating and translating shaft, a first electric motor for driving the rotary motion of the shaft, the motor having a stator and a rotor coaxially arranged around the shaft and mounted in a stationary housing so as to be decoupled from the shaft as far as the translational motion is concerned, and a first bushing, which is mounted at one end of the stationary housing, is passed through by the shaft and is arranged to transfer the rotary motion of the rotor to the shaft. The head further includes a second bushing that is mounted at a second end of the stationary housing, opposed to the first one, to seal the internal cavity thereof also at that second end, and is passed through by the shaft that is mounted in the same bushing in a freely rotatable manner.

A screw cap is aligned using a loading piston by a method for aligning the screw cap and the loading piston in relation to each other, and after alignment a method for screwing a screw cap onto a threaded neck portion of a packaging container is performed. The screw cap includes a base portion having a top and a bottom surface, and an annular portion raised from the base portion, the annular portion having an inner surface and an outer surface; and at least one first threaded portion arranged on the inner surface of the annular portion. The base portion includes engagement features, such that the screw cap is configured to engage a tool with at least one complementary engagement feature in a process of screwing the cap onto the container with the complementary threaded neck portion.

The invention relates, inter alia, to a closure head having a magnetic coupling and an adjusting device having a holding component, an adjusting component, a connecting component and a locking component. The adjusting component carries a first magnetic ring of the magnetic coupling. The connecting component holds the adjusting component adjustably on the holding component for adjusting the first magnetic ring relative to a second magnetic ring of the magnetic coupling for adapting a maximum closing torque. The connecting component is elastically pretensioned for assuming a holding position, in which the connecting component connects the adjusting component to the holding component in a rotationally fixed manner. The locking component is elastically pretensioned for assuming a locked position, in which the locking component blocks the connecting component in the holding position.

The capping head body is a body of a capping head used for the capping head that attaches a cap having a topped cylindrical shape to a mouthpiece portion of a can having a bottomed cylindrical shape, the capping head body including: a body main portion having a cylindrical shape; a spindle attachment portion disposed inside the body main portion and attached to a spindle; and a swing shaft housing portion disposed between an outer peripheral portion and an inner peripheral portion of the body main portion, in which the swing shaft housing portion is disposed around a periphery of the spindle attachment portion, and has a through-hole into which a swing shaft that swings a forming roller toward a peripheral wall of the cap is inserted, and the through-hole penetrates the body main portion in an up-down direction.

A cap rotating equipment includes a power rotating shaft, a cap rotating housing and a cap fixing device. The cap rotating housing is connected to the power rotating shaft, and the cap rotating housing includes an opening. The cap fixing device is installed in the opening of the cap rotating housing and is used to clamp a cap of a bottle.

A screw cap is aligned using a loading piston by a method for aligning the screw cap and the loading piston in relation to each other, and after alignment a method for screwing a screw cap onto a threaded neck portion of a packaging container is performed. The screw cap includes a base portion having a top and a bottom surface, and an annular portion raised from the base portion, the annular portion having an inner surface and an outer surface; and at least one first threaded portion arranged on the inner surface of the annular portion. The base portion includes engagement features, such that the screw cap is configured to engage a tool with at least one complementary engagement feature in a process of screwing the cap onto the container with the complementary threaded neck portion.

The capping head body is a body of a capping head used for the capping head that attaches a cap having a topped cylindrical shape to a mouthpiece portion of a can having a bottomed cylindrical shape, the capping head body including: a body main portion having a cylindrical shape; a spindle attachment portion disposed inside the body main portion and attached to a spindle; and a swing shaft housing portion disposed between an outer peripheral portion and an inner peripheral portion of the body main portion, in which the swing shaft housing portion is disposed around a periphery of the spindle attachment portion, and has a through-hole into which a swing shaft that swings a forming roller toward a peripheral wall of the cap is inserted, and the through-hole penetrates the body main portion in an up-down direction.

Disclosed is a method of fastening a cap of a container, the method including: specifying a screw thread engagement point of a cap and a neck ring of a container; and aligning the engagement point with a fastening start position of the cap and fastening the cap to the neck ring, in which the specifying of the engagement point includes detecting the engagement point by rotating the cap in a reverse direction in a state where the cap is seated on the neck ring.

A capping head for applying pre-threaded caps to containers includes a rotating and translating shaft, a first electric motor for driving the rotary motion of the shaft, the motor having a stator and a rotor coaxially arranged around the shaft and mounted in a stationary housing so as to be decoupled from the shaft as far as the translational motion is concerned, and a first bushing, which is mounted at one end of the stationary housing, is passed through by the shaft and is arranged to transfer the rotary motion of the rotor to the shaft. The head further includes a second bushing that is mounted at a second end of the stationary housing, opposed to the first one, to seal the internal cavity thereof also at that second end, and is passed through by the shaft that is mounted in the same bushing in a freely rotatable manner.

An apparatus for securing a cap on a cylindrical container includes: a stage for separately receiving a cap and a container; an elevator movable upwardly away from the stage and downwardly toward the stage; and a cap holding assembly mounted on the elevator. The cap holding assembly comprises: a capture member platform, the capture member platform including a capture unit configured to capture the cap; at least one extendable member extending through the capture member platform, the at least one extendable member movable from a home position with the extendable member above a center of the cap captured by the capture unit and an engagement position with the extendable member engaging the center of the cap and urging the center of the cap downwardly relative to an outer sidewall of the cap; and a claw member attached to the capture member platform that is movable between an unengaged position, in which the claw member is not positioned to engage the cap, and an engaged position, in which the claw member is positioned to engage a lower edge of the cap.