Cab Technology PX Series, Руководство по обслуживанию

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5.1 Measuring and Adjusting the Winding Torques
The rewinder for the transfer ribbon is coupled to the main drive using a slipping clutch in. The supply hub of the
transfer ribbon is braked with a slipping clutch during printing.
The correct setting of the torques of these slipping clutches is necessary for:
• precise conveyance of the transfer ribbon during label transport
• the prevention of wrinkles in the feed path of the transfer ribbon
The winding axes of the rewinder are not actively driven by the belts during label reverse, but rather solely by the
pull of the print roller. The torque required to disengage the rewinder from the belt drive is implemented via a brake
in the winding reel, which works in both directions. The measured torque against the winding direction is the sum
of the coupling torque and the torque of the brake. Only the torque of the brake is measured when the winding axis
is rotating in winding direction. For this reason, measurement of the torques at the rewinders are required in both
directions.
Measurement of the winding torques at the transfer ribbon take up and supply hub

5.1.1 on page 19.
If the winding torque differs from the set value, it must be adjusted.

5.1.2 on page 21.
5.1.1 Measuring the Winding Torques
Measurement of the winding torque at the transfer ribbon take up and supply hub occurs by determining the pulling
forces on a test collar attached to the winder.
The physical relation between the torque and the pulling force is:
F= M / r
F: Pulling force [N],
M: Winding torque [Ncm],
r: Radius of the test collar (30 mm)
5 Adjustments