Patent ID: 11960992
Assignee: FUJIFILM CORPORATION
Field: Handling (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 9:
10. A winding condition calculating method at least comprising:
a step of creating a learning model by performing machine learning using a combination of a winding parameter and a winding condition in producing a wound web that satisfies a target winding quality as training data;
a step of inputting a winding parameter of a new wound web; and
a step of calculating a winding condition of the new wound web using the learning model from the winding parameter,
wherein the winding parameter includes a web width, a web transport velocity, and a web winding length, and
wherein the winding condition includes a tension of the web at the start of winding and a tension of the web at the end of winding;
further comprising:
a step of adding, in a case where with respect to a set of the winding conditions obtained in producing the web, which is the training data, a value of each winding condition item is denoted by Cni, an allowable quality range value set to the value Cni of the winding condition item is denoted by Tni and the number of items to which the allowable quality range value Tni is set is denoted by N, a range obtained by the following Equation for each item, to the winding conditions, and assigning 3N−1 pieces of the training data or a part of the training data, as additional training data,

Ck=Cni±0.5×Tni.