Patents for B21D 45 - Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass (3,285)
12/2004
12/23/2004US20040255636 Device for ejection of moulded pieces from a moulding tool
12/21/2004CA2120298C Punching die
12/16/2004US20040250585 Extraction system for hot formed parts
12/07/2004US6827544 Suction control unit in a plate suction and lifting device
11/2004
11/17/2004EP1478014A1 Improved production method for QFN leadframes
11/04/2004US20040216577 Slug control tool
09/2004
09/30/2004WO2004034158A3 Stock lifter for metal forming dies and method for making the same
09/28/2004US6796158 Adjustable knockout assembly for a press system
09/15/2004CN2640655Y Punching appts. with auto charging/discharging function
08/2004
08/25/2004EP1448327A1 Internally cooled punch
08/18/2004EP1446247A1 Device for ejection of moulded pieces from a moulding tool
08/10/2004US6773252 Press molding apparatus
07/2004
07/27/2004US6766719 Method and apparatus for removing a plurality of die-cutted products from an operating area of a die-cutting apparatus having multiple dies
07/14/2004CN2625073Y Material returning device for sheet material blanking
07/07/2004CN2623375Y Automatic workpiece releasing device of large type drawn components
07/06/2004US6757951 Composite urethane stripper for metal joining apparatus
07/01/2004US20040123640 Stripper-plate alignment system and die set
06/2004
06/29/2004US6755104 Stripper plate supporting assembly
06/17/2004US20040112111 Adjustable knockout assembly for a press system
06/08/2004US6745655 System for stacking blanks produced particularly in a progressive die process
06/08/2004US6745638 Device mounted onto a slider crank for generating a displacement of a part mounted onto the slide in relation to the latter
06/03/2004WO2004045788A1 Discharge device for worked material
06/02/2004CN2618702Y Following material returning device of large tonnage digital control turrent punching machine
04/2004
04/27/2004US6725751 Rotary punching apparatus
04/22/2004WO2004034158A2 Stock lifter for metal forming dies and method for making the same
04/22/2004DE10248124A1 Auswerfer in Rotationsschneidblechen Ejector rotary cutting sheets
04/22/2004CA2501893A1 Stock lifter for metal forming dies and method for making the same
04/15/2004US20040069041 Stock lifter for metal forming dies and method for making the same
04/14/2004EP1407863A1 Scrap removal system for rotary cutters
03/2004
03/31/2004CN2608183Y Digital controlled automatic unloading device of plate punching equipment
03/18/2004WO2004011844A3 Stripper-plate alignment system and die set
03/03/2004EP1393834A1 Peripheral length correction device of metal rings
02/2004
02/05/2004WO2004011844A2 Stripper-plate alignment system and die set
02/05/2004WO2004011172A1 Stripping device
01/2004
01/28/2004EP1384535A1 Stripper
01/22/2004US20040011178 Die device
01/06/2004CA2283825C Apparatus and method for cooling hot rolled steel rod
01/01/2004US20040000223 Stripper plate supporting assembly
01/01/2004CA2434013A1 Stripper plate supporting assembly
12/2003
12/24/2003WO2003106066A1 Die and die device
12/18/2003WO2003103872A1 Improved stripper plate retention system
12/18/2003WO2003103871A1 Slug float-up preventing mechanism
12/17/2003CN2592306Y Gapless feeding apparatus for high-speed stamping press
12/16/2003US6662617 Press for transforming work pieces
12/11/2003US20030226437 Stripper plate retention system
11/2003
11/04/2003US6640603 Slug-retaining punch press tool
10/2003
10/29/2003CN2582777Y Eccentric multimould displacement mould changing device used for plate material punching press
10/29/2003CN2582776Y Vacuum suction punching machine safety apparatus
10/22/2003EP1353766A1 Lugged cap forming system
09/2003
09/30/2003US6625861 Methods and apparatus for removing a slug from a frame of an automobile
09/11/2003US20030168780 Tooling system
09/09/2003US6615631 Panel extraction assist for superplastic and quick plastic forming equipment
09/03/2003EP1140385B1 Rotary punching apparatus
08/2003
08/13/2003EP1334782A1 Metal mold device
07/2003
07/29/2003US6598450 Internally cooled punch
07/23/2003CN2561533Y Automatic feeding punch
07/09/2003CN2559438Y Continuous die for punching press equipment
06/2003
06/18/2003CN1111606C Apparatus and method for cooling hot rolled steel rod
06/12/2003US20030106403 Method and apparatus for removing a plurality of die-cutted products from an operating area of a die-cutting apparatus having multiple dies
05/2003
05/30/2003WO2003043759A1 Device for ejection of moulded pieces from a moulding tool
05/21/2003EP1311359A1 Method and apparatus for removing a plurality of die-cutted products from an operating area of a die-cutting apparatus having multiple dies
05/20/2003US6565349 Apparatus for producing outsert molded parts in production line
05/15/2003WO2003039783A1 Internally cooled punch
05/14/2003EP1200211B1 Method and apparatus for forming opposing holes in a side wall of a tubular workpiece
05/14/2003CN1416974A Continuous steel belt punching production line
05/08/2003US20030084699 Internally cooled punch
04/2003
04/29/2003US6554120 Work sheet processing system
04/23/2003CN1411927A Float scraps detector and detecting method
04/23/2003CN1106235C Hydraulic punching head mechanism with press unit for punching machine
04/17/2003US20030070516 Slug float detecting device and detection method thereof
03/2003
03/13/2003US20030046970 Press for transforming work pieces
02/2003
02/25/2003US6523668 Guiding and stacking system for sheet metal parts
02/11/2003US6516696 Sleeve-type gas spring
02/04/2003US6513411 Die block assembly with clearance protection mechanism
12/2002
12/05/2002US20020178776 Composite urethane stripper for metal joining apparatus
11/2002
11/06/2002CN1378222A Method and device for producing core material of iron core
10/2002
10/24/2002US20020152783 Panel extraction assist for superplastic and quick plastic forming equipment
10/16/2002EP1058605A4 Quick change adjustable punch tool assembly and method of adjustment
10/15/2002US6463839 Punch holder apparatus
09/2002
09/19/2002US20020131853 Suction control unit in a plate suction and lifting device
09/12/2002US20020124623 Slug-retaining punch press tool
08/2002
08/21/2002CN2506371Y Material stripping-off device
08/14/2002CN2505200Y Material-returning device for forming machine of printed circuit board
08/13/2002US6430795 Composite urethane stripper for metal joining apparatus
08/08/2002US20020104415 System for stacking blanks produced particularly in a progressive die process
08/06/2002CA2034675C Stripper plate retaining ring
08/01/2002US20020100170 Methods and apparatus for removing a slug from a frame of an automobile
07/2002
07/24/2002CN1087980C Ejecting device for punching machine
07/18/2002US20020092390 Workpiece-transfer device
07/10/2002CN2499147Y Tilting device for veneer reeling machine
06/2002
06/27/2002WO2002049787A1 Lugged cap forming system
06/27/2002US20020078836 Alternative stamp die device
06/27/2002DE10060833A1 Vorrichtung zum Stapeln von insbesondere im Folgeschnittverfharen hergestellten Schnittteilen Device for stacking particularly produced in the sectional parts Folgeschnittverfharen
06/20/2002US20020073817 Die block assembly with clearance protection mechanism
06/19/2002EP0973952B1 Apparatus and method for cooling hot rolled steel rod
06/13/2002US20020071882 Press molding apparatus
06/13/2002DE10060337A1 Stamp offcuts and stamped parts separating device has at least one transverse carriage with changeable separating sheet
06/11/2002US6401507 Hydroforming, in-die hydropiercing and slug-ejecting method and apparatus
06/06/2002US20020066990 Work sheet processing system
06/05/2002EP1210997A2 Work sheet processing system
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