US 10,462,951 B2
Automatic detection device and automatic detection method for tape
Xiao Dong Chi, Nagoya (JP)
Assigned to FUJI CORPORATION, Chiryu-shi (JP)
Appl. No. 15/534,796
Filed by FUJI CORPORATION, Chiryu-shi (JP)
PCT Filed Dec. 12, 2014, PCT No. PCT/JP2014/083041
§ 371(c)(1), (2) Date Jun. 9, 2017,
PCT Pub. No. WO2016/092706, PCT Pub. Date Jun. 16, 2016.
Prior Publication US 2018/0228067 A1, Aug. 9, 2018
Int. Cl. H05K 13/08 (2006.01); B65H 20/00 (2006.01); G01B 11/14 (2006.01); H05K 13/02 (2006.01)
CPC H05K 13/08 (2013.01) [B65H 20/00 (2013.01); G01B 11/14 (2013.01); H05K 13/02 (2013.01); H05K 13/0215 (2018.08); H05K 13/0812 (2018.08)] 9 Claims
OG exemplary drawing
 
1. An automatic detection device for tape comprising:
a tape feeding mechanism that feeds the tape, in which cavities for component accommodation are provided at a regular interval and which has multiple empty cavities on a leading end side, at a predetermined pitch, the tape feeding mechanism including a tape feeding sprocket having multiple origin positions at an interval which is equal to or larger than the predetermined pitch;
an origin position sensor to detect each of the multiple origin positions of the tape feeding mechanism;
a light amount detector to transmit light through the tape and detect a transmitted light amount;
a leading end detector to detect a leading end of the tape fed by the tape feeding mechanism based on a detected light amount from the light amount detector;
a reference position determination circuitry to determine a tape reference position, which is in a fixed positional relationship with a first origin position of the tape feeding mechanism detected by the origin position sensor, based on (a) a first position of the tape feeding mechanism based on the leading end detector detecting the leading end of the tape and (b) the first origin position of the tape feeding mechanism immediately before the leading end was detected by the leading end detector; and
an interval calculating circuitry to calculate an interval between the cavities based on a detection cycle of the empty cavities by the light amount detector after the reference position determination circuitry determines the tape reference position.