| 摘要 |
A twin-tool press for a machine for making caps for bottles and other containers from metal foil includes two tool sets for blanking and forming caps from the same strip of foil arranged so that the line between their centers is inclined at an angle of about 60 DEG to the longitudinal axis of the strip. The blanks simultaneously cut by the two tools therefore form two rows down the length of the strip. The two tools sets comprise two punch assemblies carried on a horizontally reciprocating plunger and co-operating, stationary, die assemblies. The metal foil strip is intermittently fed between the assemblies and the plunger is reciprocated so that the assemblies co-operate to effect blanking and forming operations during the periods when the foil is stationary. The caps are retained inside the punches as the plunger retracts after a blanking and forming operation and the punch assemblies include ejector rings for ejecting the caps from within the punches. The ejector ring of the upper punch is arranged to operate subsequently to that of the lower punch so that the two caps, which are formed simultaneously, are ejected successively to reduce the risk of the caps jamming or wedging as they drop down into the mouth of a cap delivery chute.
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