Shot-by-shot air pressure and timing control at the punch tip relieves vacuum during can stripping, preventing crushing and ejection.
Adjusting air pressure and blow timing for each press shot relieves negative pressure and prevents can crushing or blow-off during stripping.
A two-stage cutter with a 0.1-0.3 mm finishing offset improves fin flatness, reduces burrs, and supports stronger heat exchanger welding.
A movable release unit and transport shaft keep fittings fixed during bending, then clear the bent part for easy removal without pinching.
A staged U-preform and O-forming route enables hollow sheet metal parts curved on three axes while avoiding indentations and supporting complex cross-sections.
A locally restraining pad supports only the curved projection area to stop top plate shift, prevent cracks, and shorten forming cycle time.
Stacked disc springs and a guided press member prevent panel lift, improve punch return, and simplify spring replacement in press molds.
Angled blades indexed to CSST corrugation valleys strip outer jackets precisely without cutting conductive layers, lowering flashover risk.
A preforming diameter-reduction step thickens the corner before tooth forming, cutting superposition defects and improving yield and accuracy.
Cam-operated indexing mechanism aligns stripper plate with press center, resolving manufacturer compatibility issues.
A progressive die machine uses a connecting portion to retain the iron core laminate during provisional blanking.
Segmented cutting edges and preliminary feeding reduce die opening paths, enabling high-speed press cycles without vertical shear force damage.
A PTFE-based annular knockout guide captures between the ram and forming die to provide self-lubricating sealing without mechanical fasteners.
A crowned punch tool generates compressive stresses to counteract tensile forces during metal sheet punching operations.
A self-contained stripper unit uses a precision threaded plug to preload a mechanical die spring and locate on a ball-lock punch retainer.
Segmented stripper fingers with elastic axial movement adapt to can surfaces, preventing buckling and cracking during high-speed removal.