A device for placing threaded lids on containers includes a holder for lids to be placed and a mechanism for retaining the lids stored in the holder. The retaining mechanism has a predetermined retaining position in which the lids stored in the holder are retained and a release position in which one of the lids stored in the holder is dispensed. The device also includes a lid positioner, which places a threaded lid on a container through a first rotation about a first axis when the positioner is in the placing position. When the position is in the receiving position, the positioner causes the retaining mechanism to change from the predetermined retaining position to the release position through rotation about the first axis.

A device for placing threaded lids on containers includes a holder for lids to be placed and a mechanism for retaining the lids stored in the holder. The retaining mechanism has a predetermined retaining position in which the lids stored in the holder are retained and a release position in which one of the lids stored in the holder is dispensed. The device also includes a lid positioner, which places a threaded lid on a container through a first rotation about a first axis when the positioner is in the placing position. When the position is in the receiving position, the positioner causes the retaining mechanism to change from the predetermined retaining position to the release position through rotation about the first axis.

The present invention relates to a capping device for closing screw caps, comprising a motor and a power train so as to transmit force from the motor to the screw caps by means of the power train. The capping device comprises a control unit configured for dynamically adapting the operation of the motor, making use of a measured actual value of an operating parameter of the motor, a target closing torque and an actual closing torque model.

A magnetic screwdriver device includes a pad without magnetism, a driving shaft, and a driven shaft. The two shafts, magnetically attracted to each other, are disposed on opposite sides of the pad. The driving shaft is used to transmit a torque to rotate the driven shaft. When the torque exceeds a predetermined value to overcome a friction force between the driven shaft and the pad, the driven shaft would be stopped.

A cap attachment-detachment device includes an operation portion that moves in an up-and-down direction, and grips and rotates a cap so as to attach the cap to or attach the cap from a container. The operation portion includes a first grip claw, a second grip claw and the pressing member. The first grip claw and the second grip claw are provided to be opposite to each other and configured to be capable of applying an obliquely upward force inwardly to an upper portion of a side surface of the cap. The pressing member is configured to be capable of coming into contact with an upper surface of the cap.

A container cap with a body having a lower portion with internal threads for connecting to a container, and an upper portion defining a main opening. The upper cap portion having a first surface defining a partial opening and a stem protruding through the main opening. The lower cap portion having a second surface defining a partial opening. The upper and lower cap portions configured to rotate with respect to one another such that the partial openings align between a closed position and an open position to selectively permit fluid flow therethrough. A method for capping a container.

A container cap with a body having a lower portion with internal threads for connecting to a container, and an upper portion defining a main opening. The upper cap portion having a first surface defining a partial opening and a stem protruding through the main opening. The lower cap portion having a second surface defining a partial opening. The upper and lower cap portions configured to rotate with respect to one another such that the partial openings align between a closed position and an open position to selectively permit fluid flow therethrough. A method for capping a container.

A rotary capping machine for containers with screw caps includes a central and fixedly mounted support around which a rotary carrier having capping arrangements can be driven to rotate rotation by a first motor. The capping arrangements have capping tools that can be lifted and lowered and that can be rotated by a second motor. Each has, on its underside, a capping head for receiving screw caps. The support central includes a bottom support, the top end of which is connected to a middle support that forms a bearing section and that has a rotary bearing. The middle support releasably connects to a top support, which releasably connects to a head plate. The drive gear's rotation axis and that of the first motor are parallel to the machine axis. The drive gear meshes with a crown gear formed on the rotary carrier. The second motor's drive gear is parallel to the machine axis and meshes with a crown gear formed on the control element.

A gripper on an end effector of a robotic arm tightens caps onto a containers. Two or more such grippers cooperate to grip a cap and position it over the container. The cap is threaded to the container by rotating the cap while holding the container. The curved surface on the gripper conforms to and engages the periphery of the cap. The curved surface has plural apertures formed in it. The gripper has plural interior, partial-cylindrical compartments accessible via removable wall of the gripper. A resilient material, such as a fluoropolymer elastomer in the form of a cylinder fits into the compartments and extends partially through the apertures on the curved side to present plural resilient ribs to frictionally hold the cap during threading. When the resilient material is worn, it may be may be quickly replaced by removing the wall.

A gripper on an end effector of a robotic arm tightens caps onto a containers. Two or more such grippers cooperate to grip a cap and position it over the container. The cap is threaded to the container by rotating the cap while holding the container. The curved surface on the gripper conforms to and engages the periphery of the cap. The curved surface has plural apertures formed in it. The gripper has plural interior, partial-cylindrical compartments accessible via removable wall of the gripper. A resilient material, such as a fluoropolymer elastomer in the form of a cylinder fits into the compartments and extends partially through the apertures on the curved side to present plural resilient ribs to frictionally hold the cap during threading. When the resilient material is worn, it may be may be quickly replaced by removing the wall.