An apparatus for capping containers includes at least one capping head which is moveable between a position for picking up a cap and a position for applying the cap at a neck of a container, the grip element defining a receptacle for the cap and component for the removable retention of the cap within the receptacle. A second motor component is provided to actuate the movement of the grip element in an axial direction. The apparatus also includes a control and actuation unit functionally connected to the first and second motor components and is configured to receive in input a number of data items. The control and actuation unit is configured to actuate the first and second motor components as a function of the variation of the value over time of the number of data items.

The invention relate generally to a tightening mechanism for a bottle filling and capping system, and a bottle neck configuration. More specifically, the invention includes a machine for tightening plastic caps onto the threaded necks of plastic bottles, and bottle neck configuration that facilitates the capping process, both of which result in a simple and effective capping operation. A conveying assembly moves the bottle in a circular path where the neck of the bottle and the cap are brought together by moving the bottle under a cap that is loosely held at a particular elevation and angle by a feeder mechanism. The conveying system constricts the rotational movement of the bottle, and a neck support stabilizes the neck of the bottle vertically, as the cap is pressed onto the neck initially by a roller. A capping station in a bottle filling line is comprised of a spring biased toothed finger that engage the peripheral edge of the caps as the bottles are conveyed through the machine. Depending on various factors such as the number and circumferential length of the threads on the cap and bottle a second roller and second toothed finger will be used to complete the tightening process. When a capped bottle exits the capping station, the cap is fully engaged with the bottle in that it is tightened and in its final position relative to the bottle.

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 screw capping device for a test tube is provided. The device comprises a grasping unit configured to grasp a test tube cap and a rotating unit. The rotating unit includes a clamping assembly and a rotating assembly. The clamping assembly includes a test tube chamber used to accommodate a test tube body. A test tube pad with an inclined plane is disposed at the bottom of the test tube body. The rotating assembly includes a rotating shaft configured to drive the test tube chamber to rotate. The clamping assembly further includes a cage and cylindrical rollers. Gradient cavities are formed between the cage and the test tube chamber. The cylindrical rollers are located in the gradient cavities. The cylindrical rollers abut against and are pressed against the test tube body from a state where there is a gap between the test tube body and the cylindrical rollers.

A screw capping device for a test tube is provided. The device comprises a grasping unit configured to grasp a test tube cap and a rotating unit. The rotating unit includes a clamping assembly and a rotating assembly. The clamping assembly includes a test tube chamber used to accommodate a test tube body. A test tube pad with an inclined plane is disposed at the bottom of the test tube body. The rotating assembly includes a rotating shaft configured to drive the test tube chamber to rotate. The clamping assembly further includes a cage and cylindrical rollers. Gradient cavities are formed between the cage and the test tube chamber. The cylindrical rollers are located in the gradient cavities. The cylindrical rollers abut against and are pressed against the test tube body from a state where there is a gap between the test tube body and the cylindrical rollers.

The invention relate generally to a tightening mechanism for a bottle filling and capping system, and a bottle neck configuration. More specifically, the invention includes a machine for tightening plastic caps onto the threaded necks of plastic bottles, and bottle neck configuration that facilitates the capping process, both of which result in a simple and effective capping operation. A conveying assembly moves the bottle in a circular path where the neck of the bottle and the cap are brought together by moving the bottle under a cap that is loosely held at a particular elevation and angle by a feeder mechanism. The conveying system constricts the rotational movement of the bottle, and a neck support stabilizes the neck of the bottle vertically, as the cap is pressed onto the neck initially by a roller. A capping station in a bottle filling line is comprised of a spring biased toothed finger that engage the peripheral edge of the caps as the bottles are conveyed through the machine. Depending on various factors such as the number and circumferential length of the threads on the cap and bottle a second roller and second toothed finger will be used to complete the tightening process. When a capped bottle exits the capping station, the cap is fully engaged with the bottle in that it is tightened and in its final position relative to the bottle.

An apparatus for capping containers includes, at least one capping head which is moveable between a position for picking up a cap and a position for applying the cap at a neck of a container, the grip element defining a receptacle for the cap and component for the removable retention of the cap within the receptacle; A second motor component is provided to actuate the movement of the grip element in an axial direction. The apparatus also includes a control and actuation unit functionally connected to the first and second motor components and is configured to receive in input a number of data items; The control and actuation unit is configured to actuate the first and second motor components as a function of the variation of the value over time of the number of data items.

The invention relate generally to a tightening mechanism for a bottle filling and capping system, and a bottle neck configuration. More specifically, the invention includes a machine for tightening plastic caps onto the threaded necks of plastic bottles, and bottle neck configuration that facilitates the capping process, both of which result in a simple and effective capping operation. A conveying assembly moves the bottle in a circular path where the neck of the bottle and the cap are brought together by moving the bottle under a cap that is loosely held at a particular elevation and angle by a feeder mechanism. The conveying system constricts the rotational movement of the bottle, and a neck support stabilizes the neck of the bottle vertically, as the cap is pressed onto the neck initially by a roller. A capping station in a bottle filling line is comprised of a spring biased toothed finger that engage the peripheral edge of the caps as the bottles are conveyed through the machine. Depending on various factors such as the number and circumferential length of the threads on the cap and bottle a second roller and second toothed finger will be used to complete the tightening process. When a capped bottle exits the capping station, the cap is fully engaged with the bottle in that it is tightened and in its final position relative to the bottle.