Title:
FOREIGN MATTER REMOVAL DEVICE AND FOREIGN MATTER REMOVAL METHOD
Document Type and Number:
Japanese Patent JP2015193156
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a foreign matter removal device which is capable of reducing the occurrence of defective products by quickly removing foreign matters on an outer peripheral surface of a roll and suppressing wear of the outer peripheral surface of the roll and tips of doctor blades, and to provide a foreign matter removal method.SOLUTION: A doctor device (foreign matter removal device) comprises: a plurality of doctor blades 20 provided side by side along the axis direction of a roll 10; a doctor blade driving part 23 which moves respective doctor blades 20 independently from other doctor blades 20 between an advanced position and a retracted position; and a detection part (for example a line sensor 40) for detecting foreign matters attached to an outer peripheral surface of the roll 10. On the basis of positions of foreign matters detected by the detection part in the axis direction of the roll 10, it moves, among the plurality of doctor blades, doctor blades 20 corresponding to the positions of the foreign matters, from the retracted position to the advanced position.
Inventors:
NISHIMURA HISAKO
Application Number:
JP2014072613A
Publication Date:
November 05, 2015
Filing Date:
March 31, 2014
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD
International Classes:
B41F35/00
Attorney, Agent or Firm:
Hiroki Kashima
Masaharu Takamura
Masaharu Takamura