Yarn winding system

The invention relates to a yarn winding system. An automatic winder (1) is provided with a plurality of winder units (3), a doffing device (7), a plurality of winder units (3), and a control unit for controlling the operation of the doffing device (7). The doffing device (7) has an image capturing device that captures an image of at least one of a first surface (S1) and a second surface (S2) of the package (P) orthogonal to a rotation axis (A) of the package (P). When the rotation speed of the package (P) is a second speed lower than the first speed, the control unit causes an image capturing device of the doffing device (7) to capture an image of at least one of the first surface (S1) and the second surface (S2) of the package (P), and determines the presence or absence of an abnormality in the package (P) on the basis of an image capturing result captured by the image capturing device. 本发明涉及一种纱线卷取系统，自动络纱机(1)具备多个络纱机单元(3)、落纱装置(7)、多个络纱机单元(3)以及对落纱装置(7)的动作进行控制的控制部。落纱装置(7)具有对与卷装(P)的旋转轴(A)正交的卷装(P)的第一面(S1)以及第二面(S2)