Title:
HEATING AND COOLING APPARATUS FOR HOLLOW ROLL
Document Type and Number:
Japanese Patent JPS59159458
Kind Code:
A
Abstract:
PURPOSE:To uniformalize the oiliness distribution on the surface of a roll trunk by increasing the inside diameter of a fluid injection inner pipe of the rotary joint of a heating and cooling mechanism and permitting uniform spraying of fluid. CONSTITUTION:The fluid as heating and cooling medium is introduced into an inner pipe 6, passing through a rotary joint 4. The fluid 8 which fills the inner pipe 6 is jetted-out towards the inner wall of a roll from the injection ports 61, 62, ... properly arranged in the part having a large diameter on the trunk part of the roll. The fluid 8 jetted-out is introduced outside a roll assembly, passing through the outside pipe of the rotary joint 4.
Inventors:
NAGASHIMA TERUMITSU
Application Number:
JP3081083A
Publication Date:
September 10, 1984
Filing Date:
February 28, 1983
Export Citation:
Assignee:
HITACHI LTD
HITACHI KIKAI ENG
HITACHI KIKAI ENG
International Classes:
B29B15/00; B29B7/00; B29B7/58; B29B7/80; B29B9/00; B29B15/02; B29C31/00; B29C33/00; B29C41/26; B29C43/00; B29C43/24; B29C43/32; B29C43/46; B29C43/52; B29C43/58; B29C47/00; B29C47/88; F16C13/00; (IPC1-7): B29B1/08; B29D7/10; B29D7/14; B29H1/00; B29H3/00; F16H13/00
Attorney, Agent or Firm:
Akio Takahashi