Back to results
US 2010/0163154 A1Published application
Corrugator, and its splicing portion detecting method and device
OwnerKazuhiko Masudainventor
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerKazuhiko Masudainventor
Estimating the term…
Intended is to eliminate failure in detecting the spliced portion of base paper sheet and malfunction of the detector in the corrugator line of corrugated cardboard. Also intended is to realize automated detection means for detecting the spliced portion improved in detection accuracy. A method for detecting a spliced portion where the leading end part of a second base paper sheet (50b) on standby is bonded to the trailing end part of a first base paper sheet (50a) in the course of being supplied and selectively removing corrugated cardboards containing the spliced portion in a corrugator line comprises; emitting an ultrasonic wave toward the base paper sheets (SC, FL) transferring and receiving the ultrasonic wave penetrated the transferring sheet in an upstream region of a cutting step, detecting change of attenuated quantity of the received ultrasonic wave as the sheet transfers, thereby detecting the spliced portion, and selectively removing corrugated cardboards containing the spliced portion as a faulty ones.
A method for detecting a spliced portion where the leading end part of a base paper sheet in a standby state (a second base paper sheet) is bonded to the trailing end part of a base paper sheet in the course of being supplied (a first base paper sheet) and selectively removing corrugated cardboards containing the spliced portion, said method comprising:
A detecting device for detecting in a corrugator line a spliced portion of base paper sheets in a corrugated board, the device comprising a splicer having a pressure bonding device for jointing the leading end part of a second base paper sheet in a standby state onto the trailing end part of a first base paper sheet in the course of being supplied by means of an adhesive material and a knife for cutting the first base paper sheet at a portion right upstream of the pressure bonding device, sensors for detecting the spliced portion, and a defective cardboard removing device provided in a downstream region in the corrugator line for the purpose of removing corrugated cardboards containing the spliced portion of the base paper sheets based on a detection signal from the sensors,
Dependencies are inferred from the claim text.