Title:
STRETCHING APPARATUS AND METHOD FOR REPLACING PARTS OF STRETCHING APPARATUS
Document Type and Number:
Japanese Patent JP2020175576
Kind Code:
A
Abstract:
To improve the efficiency of parts replacement work of a stretching apparatus.SOLUTION: A stretching apparatus 5 of a film 8 comprises: a pair of link devices 10A and 10B capable of conveying and stretching a film 8, and being linked so that a plurality of links 20 configure endless chains; a heat treatment part 12 that covers a central portion 11 of the link devices 10A and 10B, and for heat treating the film 8; a sprocket (a first link drive mechanism) 31 that is located at the outside of the heat treatment part 12, disposed on an inlet side 8A of the film 8, and for driving the plurality of links 20; a sprocket (a second link drive mechanism) 32 that is located at the outside of the heat treatment part 12, disposed on the outlet side 8B of the film 8, and for driving the plurality of links 20; and a sprocket (link adjustment mechanism) 34 that is located at the outside of the heat treatment part 12, disposed on the outlet side 8B of the film 8, and for reducing the pitches of the plurality of links 20.SELECTED DRAWING: Figure 2
Inventors:
YOSHIMATSU NAOAKI
NAKAJIMA ICHIRO
NAKAJIMA ICHIRO
Application Number:
JP2019079077A
Publication Date:
October 29, 2020
Filing Date:
April 18, 2019
Export Citation:
Assignee:
JAPAN STEEL WORKS LTD
International Classes:
B29C55/20
Domestic Patent References:
| JP2016129961A | 2016-07-21 | |||
| JP2005313403A | 2005-11-10 | |||
| JPS6156723A | 1986-03-22 | |||
| JP2016132152A | 2016-07-25 |
Foreign References:
| WO2008010479A1 | 2008-01-24 |
Attorney, Agent or Firm:
Tsutsui International Patent Office