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31. 发明专利

JPH04197529A METHOD AND DEVICE FOR MANUFACTURING METALLIC SPIRAL TUBE 失效
公开(公告)号：JPH04197529A
公开(公告)日：1992-07-17
申请号：JP33316790
申请日：1990-11-28
申请人： KANASHIGE SUSUMU
发明人： KANASHIGE SUSUMU
IPC分类号： B21D11/06 , B21D9/15 , B21D9/16 , B21D53/06
摘要： PURPOSE:To manufacture the spiral tube without flattening even if it is a thin wall by freezing the metallic straight tube filled with liquid, clamping the turning part between the winding roller and the bending roller and winding it with the inclined guide part of the winding roller while bending by driving the winding roller. CONSTITUTION:The liquid being able to freeze is filled in the metallic straight tube 7, both ends are sealed and this is frozen in the freezer 6. Next, the part of the metallic straight tube 7 to be wound is clamped between the winding roller 3 and the bending rollers 5, 50, 51, while bending the metallic straight tube 7 in resisting to the tube flattening force with the inner frozen body with the winding roller 3 and the bending rollers 5, 50, 51 by rotating to drive, at least, the winding roller 3, the winding part 80 is deviated with respect to the beginning end part 70 with the inclined guide part 31 of the winding roller 3 and wound round the winding roller 3 in the spiral state.

34. 发明专利

JPS5759921B2 失效
公开(公告)号：JPS5759921B2
公开(公告)日：1982-12-17
申请号：JP12125975
申请日：1975-10-09
申请人： HONDA ENJINIARINGU KK , PPONDA GIKEN KOGYO KK
发明人： KANETANI KOTARO , WATANO YUKIHISA
IPC分类号： B21C37/08 , B21C37/00 , B21D9/16 , B23K9/00 , B23K9/12 , B23K31/00 , B23K37/00 , G01B5/00 , G01B5/20 , G01B5/24 , G01B5/28

35. 发明专利

JPS56119626A PIPE BENDING MACHINE 失效
公开(公告)号：JPS56119626A
公开(公告)日：1981-09-19
申请号：JP2052180
申请日：1980-02-22
申请人： HITACHI LTD
发明人： UCHIDA FUMIHIKO , SATOU KAZUO , TAKAHASHI SOUJI
IPC分类号： B21D7/025 , B21D9/07 , B21D9/16
摘要： PURPOSE:To correct a mandrel to an optimum position and improve the yield of products by inserting a mandrel into a pipe, and detecting the axial load fluctuations of the mandrel during bending the pipe. CONSTITUTION:The load curve 14 of the load applied axially upon a mandrel 1 obtained by a bending machine 13 during bending of a pipe 2 is A/D converted 15 and the values thereof are compared with the values of the master curve written in an ROM16. An alarm for insufficient lubrication is emitted when the tension larger as compared to the master curve is detected, that for the position deviation of the mandrel 1 when the maximum compressive load changes sharply, and that for the occurrence of creasing when the load curve changes like waves. The fluctuations from optimum working conditions obtained from the results of this detection are fed back to the pipe bending machine 13, whereby lubrication or the position of the mandrel 1 is corrected to optimum conditions.

36. 发明专利

JP2018008284A 管材の製造方法およびマンドレル审中-公开
公开(公告)号：JP2018008284A
公开(公告)日：2018-01-18
申请号：JP2016137597
申请日：2016-07-12
申请人：三菱重工業株式会社
发明人：河本洋 , 安井豊明 , 佐野陽一 , 清田良寛
IPC分类号： B21D9/16 , B21D9/00
CPC分类号： B21D9/16 , B21D7/022 , B21D9/04 , B21D9/125 , B21D9/18 , B21D37/18
摘要：【課題】曲げ加工時に被加工部材とマンドレルとの抵抗を低減しつつ、全体の加工時間を短縮する管材の製造方法およびマンドレルを提供することを目的とする。【解決手段】内部にドライアイスパウダー3を流通させる流路4と、先端に前記ドライアイスパウダー3を噴射する噴射穴7とを備えているマンドレル2を、管材1の内部に挿入するステップと、管材1の内部に噴射穴7からドライアイスパウダー3を噴射するステップと、マンドレル2が挿入された管材1に対し曲げ加工を行うステップを有している。【選択図】図1

39. 发明专利

JP2004351439A Thawing method, thawing device, and circulation system of liquid for freeze bending 有权
公开(公告)号：JP2004351439A
公开(公告)日：2004-12-16
申请号：JP2003150151
申请日：2003-05-28
申请人： Yamaha Motor Co Ltd , ヤマハ発動機株式会社
发明人： NAKAJIMA TOMOYUKI , TASHIRO YOJI , YOSHINO TAMIO
IPC分类号： B21D9/16 , B21D9/00 , B21D9/15
摘要： PROBLEM TO BE SOLVED: To provide a thawing method for a freeze bending in which thawing can be executed in a short period of time and by which a liquid can be removed, and to provide a thawing device and a circulation system of a liquid.
SOLUTION: The lower side end of a bent pipe stock after freeze bending for bending the pipe stock 3, in which the filled liquid is frozen, is released. A liquid injector is mounted to the upper side end and then the bent pipe stock is hanged and suspended via the liquid injector. In such a state, the bent pipe stock is immersed into a liquid in a bath storing the liquid whose temperature is raised and which has the same composition as that of the filled liquid. The temperature-raised liquid having the same composition as that of the filled liquid is pressurized and injected so that the thawed liquid is flowed out from the inside of the bent pipe stock to the outside.
COPYRIGHT: (C)2005,JPO&NCIPI

40. 发明专利

JP2004344951A Multilayer pipe, manufacturing method and manufacturing device for multilayer pipe 审中-公开
标题翻译：多层管，多层管制造方法及制造装置
公开(公告)号：JP2004344951A
公开(公告)日：2004-12-09
申请号：JP2003146001
申请日：2003-05-23
申请人： Yamaha Motor Co Ltd , ヤマハ発動機株式会社
发明人： NAKAJIMA TOMOYUKI , TASHIRO YOJI , YOSHINO TAMIO
IPC分类号： F01N13/08 , B21C37/06 , B21D9/00 , B21D9/15 , B21D9/16 , B21D53/84 , F01N7/08
CPC分类号： B21C37/157 , B21C37/06 , B21D9/15
摘要： PROBLEM TO BE SOLVED: To inexpensively obtain a multilayer pipe which has a bent part excellent in appearance.
SOLUTION: The multilayer pipe 3 is at least composed of an inner pipe 1 and an outer pipe 2. A fibrous filler 4 is arranged between the inner pipe 1 and the outer pipe 2 at a pipe bending part of the multilayer pipe 3. A bending liquid is filled into the inside of the multilayer pipe 3 and then frozen. The pipe is bent at the filler arranged part in a liquid frozen state.
COPYRIGHT: (C)2005,JPO&NCIPI

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