US 10,479,116 B2Granted

Base material processing apparatus and detection method

AssigneeSCREEN Holdings Co., Ltd.

InventorsHiroaki Usumoto, Mitsuhiro Yoshida, Takaharu Yamamoto

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Abstract

A base material processing apparatus includes first and second edge sensors and a displacement amount calculation part. The first edge sensor acquires a first detection result (R1) by detecting the position of an edge of a base material in a width direction at a first detection position. The second edge sensor acquires a second detection result (R2) by detecting the position of the edge of the base material at a second detection position. The displacement amount calculation part calculates the amount of displacement in the position of the base material in the transport direction or the amount of difference in the transporting speed of the base material on the basis of the first and second detection results (R1, R2). Thus, the amount of displacement in the position or the amount of difference in the transporting speed can be detected without depending on images such as register marks.

Claims15

Dependent claims

A base material processing apparatus comprising:

a transporting mechanism that transports a long band-like base material in a longitudinal direction of the base material along a predetermined transport path;
a first detection part that acquires a first detection result by continuously or intermittently detecting a position of an edge of the base material in a width direction at a first detection position in said transport path;
a second detection part that acquires a second detection result by continuously or intermittently detecting the position of the edge of the base material in the width direction at a second detection position that is located downstream of said first detection position in said transport path;
and
a displacement amount calculation part that calculates an amount of displacement in position of the base material in a transport direction or an amount of difference in transporting speed of the base material on the basis of said first detection result and said second detection result,
wherein said displacement amount calculation part identifies a highly matched data section included in said second detection result for each data section included in said first detection result, and calculates the amount of displacement in position of the base material in the transport direction or the amount of difference in transporting speed of the base material on the basis of said data section that has been identified.

3 more elements

A detection method for detecting an amount of displacement in position of a long band-like base material in a transport direction or an amount of difference in transporting speed of the base material while transporting the base material in a longitudinal direction of the base material along a predetermined transport path, the method comprising operations of:

a) acquiring a first detection result by continuously or intermittently detecting a position of an edge of a base material in a width direction at a first detection position in said transport path;
b) acquiring a second detection result by continuously or intermittently detecting the position of the edge of the base material in the width direction at a second detection position that is located downstream of said first detection position in said transport path;
and
c) calculating an amount of displacement in position of the base material in the transport direction or an amount of difference in transporting speed of the base material on the basis of said first detection result and said second detection result,
wherein in said operation c), a highly matched data section included in said second detection result is identified for each data section included in said first detection result, and the amount of displacement in position of the base material in the transport direction or the amount of difference in transporting speed of the base material is calculated on the basis of said data section that has been identified.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/882,218Filed 29 Jan 2018
Priority: JP 2017-05846224 Mar 2017
Published: US 2018/0272768 A127 Sep 2018
Granted: 19 Nov 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification23 codes

B41J 19/205
Drive control means for carriage movement: position or speed detectors therefor
B41J 11/008
Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in…:…
B41J 11/0095
Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in…:…
B41J 15/04
Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or…