Bottles on a conveyor run through a labelling mechanism that applies a label to the bottle. Even spacing of the bottles on the conveyor is not required and the conveyor can slow down, speed up, or stop at any time.

Machine Objectives:

• Accurately apply labels to bottles in motion
• Allow for variable conveyor speed
• Allow for inconsistent distance between bottles
• Pull label web through dispenser
• Smooth, consistent labelling at all speeds

Motion Control Requirements:

• Synchronization to conveyor axis
• Electronic gearbox funtion
• Registration control
• High torque to overcome high friction
• High resolution

Application Solution:

This application requires a motion controller that accept signals from the encoder on the conveyor and returns appropriate control commands to the encoder. A servo system provides the torque and speed to overcome the friction of the dispensing head and the inertia of the large roll of labels. A photosensor monitors the position of the bottles on the conveyor and gives the feedback to the controller.

Product Solutions:

• Controller/Drive - GV6K-U6E*
• Motor - N0704FE*
• *The APEX6152 controller/drive with an N0704FR has also been used in this type of application.