Title:
MOLDING METHOD OF NON-CERAMIC INSULATOR AND DEVICE THEREFOR
Document Type and Number:
Japanese Patent JP2588676
Kind Code:
B2
Abstract:
PURPOSE: To continuously mold a rubber coating on the outer circumference of a long core while the core is transported successively and easily and precisely mold a long non-ceramic insulator.
CONSTITUTION: A raw material rubber is poured in a cavity 21 of dies 1, 2 and a rubber coating R consisting of a trunk part (b) and a hood part (s) is molded on the oute circumference of a long core C. A storage part 28 to store the rear end part of the rubber coating R after the molding is formed in the dies 1, 2. Positioning jigs 32, 33 to hold the terminal part of the already molded rubber coating R and position the long core C in the dies 1, 2 are installed at the front end of the dies 1, 2. A sleeve 26 to mold a connection part of the rubber coating R is installed at the rear end part of the cavity 21. At the time when a first rubber coating is molded, a head holding jig is installed while replacing the positioning jig 32.
Inventors:
GOTO DAISAKU
Application Number:
JP34784092A
Publication Date:
March 05, 1997
Filing Date:
December 28, 1992
Export Citation:
Assignee:
NGK INSULATORS LTD
International Classes:
H01B17/00; B29C43/14; B29C45/00; B29C45/14; H01B19/00; (IPC1-7): H01B19/00; H01B17/00
Domestic Patent References:
| JP56120015A |
Attorney, Agent or Firm:
Hironobu Onda