SAFE CONTROL APPARATUS AND METHOD OF ADJUSTING THE STROKE LENGTH OF AN ECCENTRIC PRESS
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United States of America Patent
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Issued Date -
Apr 11, 2019
app pub date -
Sep 28, 2018
filing date -
Oct 9, 2017
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Abstract
A safe control apparatus (10) for adjusting the stroke length of an eccentric press (100), wherein the eccentric press (100) has a plunger (102) that is driven via a connecting rod (104) by an eccentric system (106) that comprises an eccentric shaft (108) and an eccentric bushing (114) that can be released from one another and then rotated against one another for the adjustment of the stroke length; wherein the control apparatus (10) has an encoder (12) for determining the rotational position of the eccentric shaft (108) and a control logic (10) to generate a first switching signal at at least one first rotational position (BDC, TDC). The control logic (10) is here configured to automatically readjust the first rotational position (BDC, TDC) on an adjustment of the stroke length.
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