Dynamic scale for flat goods transported on their sides, and method for control thereof

US10690535B2 · kind B2 · utility

Assignee

• Francotyp-Postalia GmbH · DE

Inventors

• Volker Baum · Berlin, DE
• Frank Geserich · Friedrichsthal, DE

Key dates

• Filing date: Nov 1, 2017
• Grant date: Jun 23, 2020
• Expiry date: Sep 25, 2038

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65H2701/1916
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In a dynamic scale for flat goods on their sides, and a control method therefor, flat goods are transported with a continuous counting of encoder pulses, and a weight measurement of a moving flat good is started when the trailing edge of the flat good has reached a first sensor. A first count state of the counter is stored when the leading edge of the flat good reaches a second sensor but a valid weight measurement result is not present. A weight measurement takes place with a transport velocity reduced in steps. After a step-down of the transport velocity of the flat good a subsequent weight measurement is performed with a next lowest transport velocity, and the current counter state is then queried if neither a valid weight measurement result exists, nor can it be established that the trailing edge of the flat good has reached the first sensor, although the leading edge of that flat good has reached the second sensor, as well as a check shows the current counter state corresponds to the sum of the stored counter state and a predetermined count value. The querying steps after the check are repeated as long as the current counter state has not yet reached the sum, and with an addit…