Position adjusting unit, in particular in packaging machines

摘要

The device has a crossbar at right angles to the direction of movement of the bottles. The cross bar has at least two parallel spindle nuts (13). Each nut associated with a spindle has a threaded bore (18) to act with the spindle, and an additional passage bore (19). The neighbouring spindle passes freely through this bore. The spindle movements may be uncoupled from each other. Each spindle has its own drive, or there may be a common drive with transmissions. The transmission ratio is adjustable.