Patents for B21D 45 - Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass (3,285)
06/2002
06/04/2002US6397715 Slug-retaining punch press tool
05/2002
05/22/2002EP1089837B1 Tool holder with punching units
05/16/2002DE10150101A1 Press for changing workpiece has release device provided to separate clutch in case value of power continuously measured from reference value deviates only from fixed value
05/08/2002DE10050618A1 Auswerfersystem für eine Presse Ejector system for a press
05/07/2002CA2062893C Punch assembly
05/02/2002WO2002034426A1 Metal mold device
05/02/2002EP1200211A1 Method and apparatus for forming opposing holes in a side wall of a tubular workpiece
04/2002
04/18/2002WO2002030592A1 Ejector system for a press
04/11/2002DE10045747A1 Press piece comprises housing section which deviates from circular shape for enabling non-positive connection between press piece and assembly tool
04/10/2002EP1195207A2 Turret punch press
04/04/2002US20020038589 Turret punch press
04/03/2002EP0861133B1 Razor blade manufacture
04/03/2002CN1081964C Rotary Valve controlled apparatus for stripping cans from bodymaking ram
03/2002
03/14/2002US20020031424 Workpiece-transfer device
03/13/2002CN1080608C Apparatus and method for ejecting workpieces from forming machines
03/13/2002CN1080607C Punch-head assembly as well as platen thereof, and method for punching cutting guiding hole on platen
01/2002
01/31/2002US20020011396 Guiding and stacking system for sheet metal parts
01/30/2002EP0764065B1 Apparatus and method for ejecting workpieces from forming machines
01/24/2002WO2002005983A1 Method and apparatus for removing a plurality of die-cutted products from an operating area of a die-cutting apparatus having multiple dies
01/24/2002US20020007714 Punch holder apparatus
12/2001
12/13/2001US20010049954 Method and apparatus for detecting mis-stripping in a punch press machine
12/12/2001EP0809549B1 Method in a sheet metal work centre and a sheet metal work centre
11/2001
11/28/2001CN2461678Y Appts. for returning material of circuit board punch
11/07/2001CN2458104Y Ejecting mechanism for flat press
11/06/2001US6311594 Punch guiding apparatus and stripper plate used therefor
10/2001
10/23/2001US6305209 Workpiece blanking apparatus
10/23/2001CA2236890C Razor blade manufacture
10/10/2001EP1140385A1 Rotary punching apparatus
10/03/2001CN1072044C 剃刀刀片制造 Razor blade manufacturing
09/2001
09/26/2001CN1314297A Plate piece stacking machine
09/18/2001US6289709 Gutter outlet punch
08/2001
08/23/2001DE10005752A1 Assembly for stacking large sheet plate components from a press station has direction change points to divert the pressed workpieces into two or more stacking belts in a start/stop feed to gripping transfer units or for manual removal
08/22/2001EP1125651A1 Method and device for the manufacture of extruded products
08/21/2001US6276247 Adjustable punch assembly with releasable locking
08/16/2001EP1123762A2 Stacking device for sheet metal parts
08/09/2001CA2334434A1 Guiding and stacking system for sheet metal parts
07/2001
07/19/2001WO2001051234A1 Device mounted onto a slider crank for generating a displacement of a part mounted onto the slide in relation to the latter
06/2001
06/13/2001CN1066988C Apparatus for forming metal can
05/2001
05/31/2001US20010002076 Sleeve-type gas spring
05/17/2001WO2001034320A1 Rotary punching apparatus
04/2001
04/24/2001US6220138 Punch press
04/11/2001EP1089837A1 Tool holder with punching units
03/2001
03/06/2001US6196103 Punch guide assembly
02/2001
02/08/2001WO2001008829A1 Method and apparatus for forming opposing holes in a side wall of a tubular workpiece
01/2001
01/02/2001US6167742 Drawing and coining die for manufacturing metal containers and the like
12/2000
12/13/2000EP1058605A1 Quick change adjustable punch tool assembly and method of adjustment
11/2000
11/28/2000US6152005 Method of punching a punch guide hole in a blank holder of a punch assembly a punch assembly and a blank holder
11/22/2000CN1273888A Hydraulic punching head mechanism with press unit for punching machine
11/21/2000CA2189541C Rotary valve controlled apparatus for stripping cans from bodymaking ram
11/16/2000DE19922011A1 Ram-side ejector for shaping machine has common drive for ram and ejector, eccentric shaft connected to connecting rod, ram with different degree of eccentricity from ejector eccentric shaft
11/08/2000EP1050350A1 Universal puncher holder adaptor for punching machines
10/2000
10/24/2000US6134938 Forming tools
10/11/2000EP1043093A2 Workpiece blanking apparatus
09/2000
09/19/2000US6119568 Piercing apparatus
08/2000
08/10/2000WO2000045975A1 Device and method for stripping a can body from a punch, and can body made therewith
08/09/2000CN2390716Y Demoulding ejecting spring apparatus
07/2000
07/12/2000EP0784521B1 Rotary valve controlled apparatus for stripping cans from bodymaking ram
07/06/2000DE19859925A1 Hole residue removal process, involving inserting device before making hole, holding residue in defined position, and removing tool with workpiece and residue
07/04/2000US6082166 Drawing and coining die for manufacturing metal containers and the like
05/2000
05/31/2000CN1254627A Ejecting device for punching machine
05/30/2000US6067830 Method and apparatus for forming opposing holes in a side wall of a tubular workpiece
05/23/2000US6065381 Apparatus for cutting tie bars of semiconductor packages
05/04/2000DE3943747C2 Stamping press with lower die inserted
05/03/2000EP0997209A2 Apparatus for removal of items from a punching tool
05/02/2000US6055895 Punched plate material carrying-out system
04/2000
04/26/2000CN1251619A Apparatus and method for cooling hot rolled steel rod
04/12/2000EP0992317A2 Workpiece-transfer device
04/11/2000US6047621 Quick change adjustable punch tool assembly and method of adjustment
04/04/2000CA2190621C Apparatus and method for ejecting workpieces from forming machines
02/2000
02/24/2000WO2000009301A1 Punch guide assembly
02/23/2000EP0980724A2 Punch guide assembly
02/22/2000US6026670 Apparatus for use in forming can bodies
02/09/2000EP0978333A2 Punch holder apparatus
02/09/2000CN2362617Y Impact type pressure booster
01/2000
01/26/2000EP0973952A1 Apparatus and method for cooling hot rolled steel rod
01/19/2000EP0972584A2 Forming tools
01/05/2000EP0726836B1 Adjustable length punch set assembly
01/05/2000CN2356776Y Automatic ejecting device for cutting plate
12/1999
12/30/1999DE19827850A1 Tool holder with stamping punch units
12/29/1999WO1999067039A1 Tool holder with punching units
12/29/1999CA2336066A1 Tool holder with punching units
12/28/1999US6006566 Method and device for removing a slug from a hydroforming tool
12/07/1999CA2154739C Punch unit
11/1999
11/30/1999US5992280 Perforator for metal plate
11/16/1999US5984604 Base forming of can bodies
11/02/1999US5974852 Lifter unit for transfer die
10/1999
10/26/1999US5970775 Method and apparatus for forming cup-shaped container bodies
10/13/1999EP0949020A2 Piercing apparatus
10/12/1999US5964026 Sheet metal work center and method therefor of fabricating worksheets
09/1999
09/08/1999EP0940200A2 Method and device for removing a slug from an internal high-pressure forming tool
09/05/1999CA2264491A1 Method and device for removing a slug from a hydroforming tool
09/02/1999WO1999043474A1 Quick change adjustable punch tool assembly and method of adjustment
08/1999
08/31/1999US5943934 Cutting device with movable punch
08/10/1999CA2114887C Punching die
08/04/1999EP0933553A2 Sleeve-type gas spring
08/04/1999EP0933149A2 Method and apparatus for separating punched out parts and part distortion eliminating method
07/1999
07/07/1999EP0927584A1 Punch assembly
07/01/1999DE19809519C1 Method of removal of core from pressure molded hollow workpiece
06/1999
06/30/1999CN1220922A Can forming apparatus
06/30/1999CN1043854C Feed mechanism of metal can forming apparatus
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