Title:
パイプコルゲーターにおける熱膨張を識別する装置及び方法
Document Type and Number:
Japanese Patent JP6632547
Kind Code:
B2
Abstract:
Pipe corrugators having opposed series of pushed mold blocks forming a moving mold tunnel are subject to significant thermal expansion and are designed with a thermal expansion gap. The present invention provides a method and apparatus for measuring changes in this expansion gap and preferably recognizing potential thermal issues before serious problems occur. A sensor is provided adjacent a mold block drive that preferably detects a time duration between sensing a trailing portion of a lead mold block and a leading edge of a following mold block separated from the lead mold block by the thermal expansion gap. This time duration in combination with a speed of the pushed mold blocks is used to calculate the size of the thermal expansion gap.
Inventors:
Rupke, Manfred A., A.
Application Number:
JP2016568691A
Publication Date:
January 22, 2020
Filing Date:
May 15, 2015
Export Citation:
Assignee:
Rupke, Manfred A., A.
Rupke, Stefan, A.
Rupke, Stefan, A.
International Classes:
B29C53/30; B29C48/09; B29C48/30; B29C48/90; B29C48/92; B29D23/18
Domestic Patent References:
| JP7323461A | ||||
| JP2007512157A | ||||
| JP2001519251A | ||||
| JP2011500361A |
Foreign References:
| CA2419500A1 | ||||
| CA2461442A1 | ||||
| US4439130 | ||||
| US7691317 |
Attorney, Agent or Firm:
Okabe
Takao Ochi
Seiichiro Takahashi
Takao Matsui
Kosuke Uchida
Kawauchi Eiji
Hideyuki Iwatsuki
Takao Ochi
Seiichiro Takahashi
Takao Matsui
Kosuke Uchida
Kawauchi Eiji
Hideyuki Iwatsuki