| Patents for B21F 35 - Making springs from wire (1,103) |
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| 03/20/2013 | CN202804037U 节距摆动机构 Pitch swing mechanism |
| 03/20/2013 | CN102974725A Spring separation mechanism |
| 03/14/2013 | US20130062821 Coil spring forming apparatus and coil spring formed thereby |
| 03/13/2013 | CN202779564U Cutter for manufacture of springs |
| 03/13/2013 | CN102248098B Chain-driven jointed spring making machine |
| 03/06/2013 | CN202762925U Rotary-type hot prestressing machine |
| 03/06/2013 | CN202762924U Spring machine split type tool rest |
| 03/06/2013 | CN202762916U Spring machine diameter changing mechanism |
| 03/06/2013 | CN102950232A Device for adjusting fixed pitch of small-diameter spring |
| 02/27/2013 | CN202752513U Spring bending device |
| 02/13/2013 | EP2556799A1 Tissue clamp production method and tissue clamp |
| 02/13/2013 | CN102921843A Spring production line embedded with automatic head recognition device and painting device |
| 02/13/2013 | CN102921842A Process for machining high temperature resistant spring by 50CrVA steels |
| 02/06/2013 | CN102909876A Thermal pressing device of spring |
| 02/06/2013 | CN102909295A Hot powerful-pressing machine with embedded painting device |
| 01/30/2013 | CN202701230U Spring machine with spring length adjusting device |
| 01/30/2013 | CN202701229U Spring pitch correcting device |
| 01/30/2013 | CN102896258A One-way clutch of spring machine |
| 01/23/2013 | CN202683873U Ring dismounting device for tension spring |
| 01/23/2013 | CN101896296B Apparatus and method for manufacturing barrel coil spring |
| 01/16/2013 | CN102873235A Disconnecting operating mechanism for material feeding of spring machine |
| 01/16/2013 | CN102873234A Separation and reunion automatic control mechanism of spring machine clutch |
| 01/09/2013 | CN102069136B Numerically controlled complete equipment for manufacturing deformed springs and torsion springs |
| 01/03/2013 | US20130000990 Replaceable wear band for well drill pipe |
| 12/26/2012 | CN202621781U Equipment for manufacturing C-shaped clamp spring |
| 12/26/2012 | CN202621780U Bidirectional forming press |
| 12/19/2012 | CN102825180A Cutter holder-integrated spring coiling machine |
| 12/13/2012 | WO2012168508A1 Spring for directable damping, and method and device for the production thereof |
| 12/12/2012 | CN202591492U Automatic spring winding and cutting machine |
| 12/12/2012 | CN102172746B Multifunctional serpentine spring production device |
| 12/05/2012 | CN202571108U Mattress stringing machine |
| 12/05/2012 | CN102806286A Separated knife rest of spring machine |
| 11/29/2012 | US20120300214 Gyroscope utilizing torsional springs and optical sensing |
| 11/29/2012 | US20120298452 Oscillator spring composition and method for fabricating an oscillator spring |
| 11/28/2012 | CN202555729U Forming tool clamp of arc-shaped spring |
| 11/14/2012 | CN202527632U High-precision full-automatic spring machine |
| 11/07/2012 | EP2520384A1 Coiling tool for spring coiling machines |
| 10/31/2012 | CN202506785U Iron wire pressing machine |
| 10/31/2012 | CN102756060A Spring machine with spring length adjusting device |
| 10/24/2012 | CN102753280A Wire spring forming device |
| 10/24/2012 | CN102744340A Spring machine |
| 10/10/2012 | CN202479413U Spring producing device |
| 10/10/2012 | CN202479412U Hot spring coiling machine |
| 10/10/2012 | CN202479411U Rotating arm type multi-closing-station bed net spring production all-in-one machine |
| 10/10/2012 | CN202479410U Improved integrated machine with multiple closing stations for production of bed net springs |
| 10/10/2012 | CN202479409U Variable-speed moving mechanism of rack of spring machine |
| 10/10/2012 | CN102350473B Automatic torsion machine with heating device |
| 10/04/2012 | WO2012133885A1 Spring and method for producing same |
| 10/04/2012 | DE102008002214B4 Vorrichtung zum Herstellen eines schraubenförmigen Teils durch Zuführen eines Drahtes zu einem Werkzeug Apparatus for producing a helical part by feeding of a wire to a tool |
| 10/03/2012 | CN102699243A Pitch swing mechanism |
| 10/03/2012 | CN102699242A Process for processing arc-shaped spring |
| 10/03/2012 | CN102699239A Thermoforming device of arc-shaped spring |
| 09/26/2012 | CN202447565U High-accuracy multi-shaft universal spring machine |
| 09/13/2012 | WO2012121115A1 Spring and manufacturing method thereof |
| 09/05/2012 | EP2495055A1 Wire spring forming device |
| 09/05/2012 | CN202411296U U-shaped spring forming die for elevator safety tongs |
| 08/29/2012 | CN101342565B Method for qualifying work load or deformation of close coiled circular column draft helical spring |
| 08/22/2012 | CN202387890U Device for increasing initial tension of coil spring |
| 08/22/2012 | CN102641975A Production method of C-shaped snap spring and special device for implementing production method |
| 08/22/2012 | CN102166608B Method for processing III-group disc spring |
| 08/15/2012 | CN202377446U Outgoing line axis mechanism of spring machine |
| 08/08/2012 | CN202367126U Device for adjusting spring |
| 08/08/2012 | CN202367125U Hot forced pressing device of arc-shaped spring |
| 08/08/2012 | CN202367124U Arc-shaped spring forming machine |
| 08/07/2012 | CA2668706C Coil spring forming apparatus and coil spring formed thereby |
| 07/26/2012 | US20120186027 Multi-stranded coil spring |
| 07/25/2012 | CN202343823U Access moving mechanism of core cutter of spring machine |
| 07/25/2012 | CN202343822U Mandrel stretching mechanism for computer digital control spring coiling machine |
| 07/25/2012 | CN202343817U Mandrel lifting mechanism for computer numerical control spring coiling machine |
| 07/25/2012 | CN102006948B Method of manufacturing coil spring using helicoid reduction mill |
| 07/25/2012 | CN101956583B Blanking tool of spring machine and shearing oblique blanking process |
| 07/18/2012 | CN202336559U 用于电脑数控卷簧机的高速凸轮机构 High-speed cam mechanism for CNC spring coiling machine |
| 07/18/2012 | CN202336558U 一种弹簧机的滑块装置 One kind of spring machines slider device |
| 07/18/2012 | CN102581178A Fabricating process of double-mass flywheel spring |
| 07/18/2012 | CN102581177A Spring machining process |
| 07/11/2012 | CN202316871U 一种卷簧机自动控制装置 One kind of spring coiling machine automatic control device |
| 07/11/2012 | CN202316870U 一种云形锁弹簧的加工装置 One kind of cloud-shaped lock spring processing device |
| 07/11/2012 | CN202316861U 压簧机的切刀机构 Spring machine cutter mechanism |
| 07/11/2012 | CN102554079A High-precision full-automatic spring machine |
| 07/04/2012 | CN202291172U 压缩弹簧压并机 Compression spring pressure and machine |
| 07/04/2012 | CN102527887A Variable-speed moving mechanism of rack of coiling machine |
| 07/04/2012 | CN102527886A High-precision spring machine |
| 07/04/2012 | CN101534976B Coil spring forming apparatus and coil spring |
| 06/28/2012 | US20120160091 Springs and spring assemblies |
| 06/20/2012 | CN102500726A Continuous full-compression machine |
| 06/13/2012 | CN102489635A Inlet and outlet moving mechanism of core cutter of spring machine |
| 06/07/2012 | WO2012073786A1 Hollow coil spring and method for manufacturing same |
| 06/06/2012 | CN102069135B Flat spiral spring presetting molding machine |
| 05/30/2012 | CN202239406U Automatic spring coiling machine |
| 05/30/2012 | CN202239405U Multi-shaft universal spring coiling machine |
| 05/30/2012 | CN102476152A Novel multi-strand spring numerical control machine tool steel wire tension controller |
| 05/29/2012 | US8186060 Method to provide initial tension for coil spring and its application |
| 05/23/2012 | CN202224574U Automatic torsion machine with heating device |
| 05/23/2012 | CN202224566U Winding displacement device of computer torsion spring machine |
| 05/16/2012 | CN102458767A 螺旋弹簧的制造方法 The method of manufacturing a coil spring |
| 05/16/2012 | CN102451875A Deformed spring hook mould |
| 05/01/2012 | US8166786 Wire-forming machine |
| 04/25/2012 | EP2444200A1 Method for manufacturing coil spring |
| 04/19/2012 | DE102011004732A1 Hochfeste Ventilfeder für einen Fahrzeugmotor und Verfahren zur Herstellung derselben High-strength valve spring for a vehicle engine and method of producing same |
| 04/18/2012 | CN202192182U 弹簧成型机的线材切断装置 Wire spring forming machine cutting device |