Apparatus for adjustment of knock-out timing for press

An apparatus for adjustment of knock-out timing for a press having a drive shaft, comprising:

• a first rotary shaft for synchronously rotating with the drive shaft;
• a second rotary shaft coaxial with said first rotary shaft;
• a drive cam mounted to said second rotary shaft for driving a knock-out mechanism;
• a clutch, disposed at connecting surfaces between said first and second rotary shafts, and shiftable between an engaged condition in which said clutch connects said first and second rotary shafts together and a disengaged condition in which said first and second shafts are disconnected;
• a connector means for shifting said clutch into said engaged condition;
• a separator means for shifting said clutch from said engaged condition into said disengaged condition;
• and
• a rotating means for rotating only one of said first rotary shaft and said second rotary shaft, while said clutch is in said disengaged condition, said rotating means comprising a gear series, a further gear mounted to said second rotary shaft, and a drive motor for rotating said further gear through a gear series.

An apparatus for adjustment of knock-out timing for a press having a drive shaft, comprising:

• a first rotary shaft for synchronously rotating with the drive shaft;
• a second rotary shaft coaxial with said first rotary shaft, said second rotary shaft being disposed at one end of said first rotary shaft;
• a drive cam mounted to said second rotary shaft for driving a knock-out mechanism;
• a clutch, disposed at connecting surfaces between said first and second rotary shafts, and shiftable between an engaged condition in which said clutch connects said first and second rotary shafts together and a disengaged condition in which said first and second shafts are disconnected;
• a connector means for shifting said clutch into said engaged condition;
• a separator means for shifting said clutch from said engaged condition into said disengaged condition;
• a rotating means for rotating only one of said first rotary shaft and said second rotary shaft, while said clutch is in said disengaged condition;
• a third rotary shaft axially aligned and disposed at an other end of said first rotary shaft opposite said one end;
• a further drive cam mounted to said third rotary shaft for driving the knock-out mechanism;
• a further clutch mounted at connecting surfaces between said first and third rotary shafts so as to be shiftable between an engaged condition in which said further clutch connects said first condition in which said second rotary shaft and a disengaged condition in which said first and third rotary shafts are disconnected from each other;
• a further connector means for putting said further clutch in said engaged condition;
• a further separator means for shifting said further clutch from said engaged condition into said disengaged condition;
• and
• a further rotating means for rotating only one of said first rotary shaft and said third rotary shaft while said further clutch is in said disengaged condition.