-
公开(公告)号：US20200061902A1
公开(公告)日：2020-02-27
申请号：US16609781
申请日：2018-04-23
发明人： Jining LIU , Kazuhiko NAKAZATO
IPC分类号： B29C57/06
摘要： A pipe end processing device includes a female die and a male die. The female die has a through hole with one side thereof being radially increased, the through hole having the molding surface for forming the protrusion formed on an inner circumference on the one side of the through hole. The male die includes a metal core passed through the through hole of the female die and configured to be axially moved, and a tubular elastic body fitted on one end part of the metal core and protruding from the one side of the female die. The tubular elastic body is configured to be axially compressed by a movement of the metal core to radially expand by deformation thereby to press the surface to be processed of the pipe against the molding surface of the female die.
-
公开(公告)号：US20220288840A1
公开(公告)日：2022-09-15
申请号：US17629941
申请日：2020-04-06
摘要： An object is to provide a thermoplastic tube bending method that suppresses springback after the processing by a highly safe and short bending step. The thermoplastic tube bending method includes a step S1 of preheating the thermoplastic tube, a step S2 of bending the preheated thermoplastic tube by using a forming mold, and a step S3 of forming the bent thermoplastic tube by temperature control of an electric heater provided to the forming mold.
-
公开(公告)号：US20200368801A1
公开(公告)日：2020-11-26
申请号：US16960342
申请日：2018-10-09
发明人： Jining LIU , Kazuhiko NAKAZATO , Takaaki HABU , Kazuyuki HARAGA
摘要： An object of the present invention is to propose a device capable of automatically insetting a tube into a bending die instead of doing so manually, even if the shape of a product exceeds two meters in length, the device comprising a bending die having a tube insetting portion, and a traveling body that includes a guide mechanism guiding a tube to an upper portion of the tube insetting portion, an auxiliary guide mechanism keeping the tube in the upper portion of the tube insetting portion, a insetting roll insetting the tube in the tube insetting portion, a pair of drive wheels rolling along lower rails, and a drive mechanism, wherein the traveling body moves and insets a tube into the bending die while having the auxiliary guide mechanism and the drive wheels grip the bending die.
-
公开(公告)号：US20230294169A1
公开(公告)日：2023-09-21
申请号：US18324575
申请日：2023-05-26
发明人： Jining LIU , Kazuhiko NAKAZATO , Takaaki HABU
IPC分类号： B22F10/20 , B33Y10/00 , B33Y50/02 , B33Y80/00 , B29C33/38 , B29C33/42 , B29C53/08 , B22F10/38 , B22F10/85
CPC分类号： B22F10/20 , B33Y10/00 , B33Y50/02 , B33Y80/00 , B29C33/3842 , B29C33/42 , B29C53/083 , B22F10/38 , B22F10/85 , B29K2905/02 , B29K2905/12 , B29L2023/004
摘要： An object of the present invention is to propose a bending die capable of creating a product without causing buckling, even if the shape of the product is long or bent freely in three-dimensional space. The bending die according to the present invention is a bending die having a smooth shape formed by virtually and continuously moving, in three-dimensional space, a profile including a substantially circular-shaped first closed curve having a recess portion, wherein an opening width b of the recess portion is shorter than a groove width a of the recess portion, a tube insetting portion is formed by the recess portion, and the smooth shape is realized and created in real space using a three-dimensional printing technique.
-
公开(公告)号：US20200346266A1
公开(公告)日：2020-11-05
申请号：US16961012
申请日：2018-09-25
发明人： Guang Ping LAN , Kazuhiko NAKAZATO
摘要： An object of the present invention is to provide a bending die that has a simple configuration and is capable of bending a rod-shaped body in a three-dimensional XYZ direction quickly and reliably, the bending die comprising a pair of forming dies clamped in a Z direction, wherein the forming dies have, respectively, rod-shaped body-forming recess portions, and rod-shaped body guide portions for guiding a rod-shaped body to the rod-shaped body-forming recess portions, the rod-shaped body-forming recess portions are each formed into a shape with a semicircular cross section that defines, between the forming dies when clamping the forming dies, a long, cylindrical cavity for forming the rod-shaped body bent in a three-dimensional XYZ direction, and the rod-shaped body guide portions are each formed into a V-shape that spreads outward from both sides of each of the rod-shaped body-forming recess portions having a semicircular cross section.
-
公开(公告)号：US20200061719A1
公开(公告)日：2020-02-27
申请号：US16609770
申请日：2018-04-04
发明人： Jining LIU , Kazuhiko NAKAZATO
IPC分类号： B23B31/117 , B23B31/08
摘要： A chuck device that allows easy attachment of a clamping target component and can provide powerful and highly reliable clamping includes a main body including a metal core part and an annular space coaxial with and formed around the metal core part; a rubber elastic body fitted in the annular space of the main body such that there is a pressure chamber between a circumferential wall that defines the annular space and the rubber elastic body, and a clearance for allowing a tubular clamping target component to be inserted between the rubber elastic body and the metal core part; and a passage for introducing a fluid to the pressure chamber, wherein the rubber elastic body is deformed to expand toward the metal core part by a pressure of a fluid introduced to the pressure chamber via the passage so that a tubular clamping target component that is attached to the metal core part is clamped by the metal core part and the rubber elastic body that has deformed to expand.
-
公开(公告)号：US20200331053A1
公开(公告)日：2020-10-22
申请号：US16960633
申请日：2018-09-20
发明人： Guang Ping LAN , Kazuhiko NAKAZATO
摘要： An object of the present invention is to provide a bending die that has a simple configuration and is capable of bending a rod-shaped body in a three-dimensional XYZ direction quickly and reliably. The bending die includes XY-plane forming dies that are to be clamped in an X direction to bend the rod-shaped body in an XY plane, and Z-direction forming dies that are to be clamped in a Z direction to bend the rod-shaped body in the Z direction, wherein when both the XY-plane forming dies and the Z-direction forming dies are clamped, a cavity that forms the rod-shaped body bent in the three-dimensional XYZ direction is defined therebetween.
-
公开(公告)号：US20170370515A1
公开(公告)日：2017-12-28
申请号：US15543913
申请日：2015-11-11
发明人： Norio KOBAYASHI , Kazuhiko NAKAZATO
CPC分类号： F16L43/005 , B21D7/022 , B21D7/025
摘要： A metal pipe including a curved portion produced by bending in which a plurality of non-bending surfaces and a plurality of bent portions at which the non-bending surfaces are connected in a bending manner are provided on a circumferential surface on an inside being a curvature center side of the curved portion. With this pipe, a good appearance can be maintained, and stagnation and resistance of a flow of a fluid can be reduced on the inner surface side of the pipe where the fluid flows.
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.013 秒)
