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公开(公告)号：US11559833B2
公开(公告)日：2023-01-24
申请号：US17035230
申请日：2020-09-28
Applicant: Taiyuan University of Science and Technology
Inventor： Ying Hu , Xuan Wen , Yan Cheng , Jianyun Yan , Xiaogang Wang , Peng Hu , Ziliang Li
Abstract: A dynamic straightening method for a left/right tilt. The method includes: drawing an unevenness curve according to a distance from a shapemeter to a surface of a plate, where there are a plurality of unevenness curves; using a barycentric formula to obtain a first barycentric coordinate of each unevenness curve; calculating a tilt value of a straightening roll corresponding to each unevenness curve according to the first barycentric coordinate of each unevenness curve; determining an unevenness curve of a current straightening roll; adjusting the straightening roll according to the tilt value of the straightening roll corresponding to the unevenness curve, to straighten the plate; and going back to the step of determining an unevenness curve of a current straightening roll until the plate is totally straightened. Such method improves plate straightening accuracy by dynamically adjusting parameters of the straightening roll.
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公开(公告)号：US20210354183A1
公开(公告)日：2021-11-18
申请号：US17035230
申请日：2020-09-28
Applicant: Taiyuan University of Science and Technology
Inventor： Ying Hu , Xuan Wen , Yan Cheng , Jianyun Yan , Xiaogang Wang , Peng Hu , Ziliang Li
Abstract: The present invention discloses a dynamic straightening method for a left/right tilt. The method includes: drawing an unevenness curve according to a distance from a shapemeter to a surface of a plate, where there are a plurality of unevenness curves; using a barycentric formula to obtain a first barycentric coordinate of each unevenness curve; calculating a tilt value of a straightening roll corresponding to each unevenness curve according to the first barycentric coordinate of each unevenness curve; determining an unevenness curve of a current straightening roll; adjusting the straightening roll according to the tilt value of the straightening roll corresponding to the unevenness curve, to straighten the plate; and going back to the step of determining an unevenness curve of a current straightening roll until the plate is totally straightened. The present invention improves plate straightening accuracy by dynamically adjusting parameters of the straightening roll.
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公开(公告)号：US11891261B2
公开(公告)日：2024-02-06
申请号：US17138968
申请日：2020-12-31
Applicant: Taiyuan University of Science and Technology
Inventor： Lifeng Ma , Ziliang Li , Qingxue Huang , Tao Wang , Dahai Jing , Rongjun Wang , Lianyun Jiang
CPC classification number: B65H43/04 , G06T7/207 , B65H2515/84 , B65H2553/42 , B65H2557/51 , B65H2601/2532
Abstract: A device for detecting the flatness of a sheet material includes a conveyor, a gantry, a beam, an industrial camera unit, a speed measurement unit, a vibration measurement unit, a multi-line laser, a cable carrier, an industrial controller, and a control cabinet. The conveyor is disposed beneath the gantry and includes a plurality of pinch roll assemblies for feeding a sheet material. The beam is disposed on the gantry and includes a first side and a second side. The industrial camera unit is disposed on the first side of the beam and includes at least two industrial cameras. The speed measurement unit is disposed between the at least two industrial cameras. The vibration measurement unit is disposed on the second side of the beam and includes at least two distance measurement devices. The multi-line laser is disposed between the at least two distance measurement devices.
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