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2. 发明专利

JPS59133021A Method and apparatus for manufacturing bulged pipe 失效
标题翻译：制造管材的方法和装置
公开(公告)号：JPS59133021A
公开(公告)日：1984-07-31
申请号：JP736083
申请日：1983-01-21
申请人： Hirata Jukogyo Kk , Seiwa Yoko Kk
发明人： NAKAMURA MASAO
IPC分类号： B21D15/04 , B29C45/00 , B29C53/00 , B29C53/08 , B29C53/24 , B29C53/30 , B29C53/82 , B29C65/00 , B29D23/18
摘要： PURPOSE: To form a bulged pipe with a fixed thickness and free in the number of bulge the interval thereof and the size by bulging a part of a pipe with deformation of an elastic body in a gentle U-shape so as to be moded in a bending die.
CONSTITUTION: A pipe P is clamped on both sides thereof with a fixed die 11 and a mobile die 15. As the tip of a core metal 1 is pressed to pressurize an elastic body 2, the pipe is bulged in a U-shape with the deformation of the elastic body. Upon the release of the pressurization, the elastic body is returned to the original state. With the mobile die 15 contacting a stopper 24, the fixed die 11 is advanced. Said bulged section P
1 is turned to a U-shaped P
2 corresponding to a space formed with a protruded wall 16 of the mobile die 15 and a recess 12 of the fixed die 11. The clamped state of the bending die is released. After the bending die is backed to the original state, with the reclamping thereof, the U-shaped P
2 advances by one pitch. The bulging work can be done continuously for the pipe by repeating the operation sequentially.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：为了形成具有固定厚度的膨胀管，并且通过使柔软的U形弹性体的变形使管的一部分膨胀而使其间隔和尺寸自由地膨胀，从而被调制成弯曲模具。构成：用固定模11和可移动模15将管P夹在其两侧。当对芯体金属1的尖端进行按压以对弹性体2加压时，管子以U形凸出，弹性体的变形。在释放加压时，弹性体返回到初始状态。移动模具15与止动件24接触时，固定模11前进。所述凸出部分P1转向对应于形成有可移动模具15的突出壁16的空间和固定模具11的凹部12的U形P2。松开弯曲模具的夹紧状态。在弯曲模具被支撑到原始状态之后，随着其弯曲，U形的P2前进一个间距。通过连续重复操作可以对管道连续进行隆起工作。

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