The present invention relates to a method for quality control of bobbins.

A device that pulls out an optical fiber includes: a bobbin support that supports a bobbin rotatably about a rotation axis; a first pulling out unit that holds a first end of the optical fiber, pulls out a first portion of the optical fiber wound around the bobbin from a side of the first end in a state where the bobbin rotates in a predetermined direction, and returns a part of the first portion to the bobbin in a state where the bobbin rotates in a direction opposite to the predetermined direction; and a second pulling out unit that holds a second end of the optical fiber after the first pulling out unit pulls out the first portion from the side of the first end, and pulls out a second portion of the optical fiber wound around the bobbin from a side of the second end.

An apparatus and method of automatically moving yarn packages between yarn processing stations in a textile environment that includes the steps of providing a yarn package elevator, transporting a yarn package on the yarn package elevator from a textile machine position to a common transfer location, and holding the package in a stationary position on an elevator tray. A label is applied to a surface of the package and the elevator tray and package is moved to a knot-tying location, the package is removed from the elevator tray to a knotting head apparatus at the knot-tying location and a knot is tied in a package yarn tail of the package to secure the package tail from unraveling in subsequent package handling steps. Correct application of the knot to the yarn tail is either validated, or in the alternative, if the knot is not validated, the package is forwarded to a location for manual reworking to apply a correct knot to the yarn tail.

A device for automatic control of color tone of a reel of thread includes a frame supporting an arm on which a reel of thread is loadable, a meter configured to project a measuring beam onto a cylindrical portion of the reel of thread, the meter having a camera and an illuminator aligned with the camera, the illuminator being multispectral and configured to illuminate the reel of thread with different wavelengths. A computer provided with a screen with graphic interface and connected to the meter processes the classification of the reel of thread loaded on the arm on the basis of measurements performed by the meter.

A device for automatically checking quality of a spool of thread for fabrics is provided. The device has at least one vision system provided with a camera, a frame of the camera defining an analysis area, the camera being connectable to a system for moving a spool of thread to be analyzed and to a computer having an analysis software stored thereon, and at least one lighting system having at least one pair of lights arranged facing each other and transversely in relation to the analysis area, each light of the at least one pair of lights having at least one light source for providing a sidelight to the analysis area.

The apparatus and methods disclosed herein are directed to detecting the presence of a whipping tail when using a fiber winding system to wind a fiber onto a rotating spool. The fiber is guided onto the rotating spool through a containment region between the spool and a whip shield to create the wound fiber. The whipping tail outwardly extends from the wound fiber and periodically or quasi-periodically passes through a light beam to create a series intensity dips in the light beam, thereby forming a modulated light beam. The modulated light beam is converted into a digital electrical signal made up of electrical pulses having a timing defined by the intensity dips. The measured timing of the electrical pulses is compared to an estimated timing based on the rotating spool to ascertain the presence of a whipping tail.

A device for detecting the presence of abnormalities in a reel includes an image capturing module for capturing images of the reel including at least one camera, a displacer for displacing the reel in a field of view of the at least one camera, an analyzer for analyzing the images captured by the at least one camera and detecting the presence of abnormalities. The image capturing module including an upper capturer and lower capturer, the upper capturer fixed on a movable support arranged for being movable with respect to lower capturer, the upper capturer and/or the lower capturer including at least one three dimension camera arranged for providing a three dimension image of the reel.

Automatic operation of a ring spinning system containing a ring spinning machine having spinning positions and a winding machine having winding positions. Yarn is spun at one of the spinning positions and wound up to a cop. Values of a parameter characteristic for the operation of the spinning position are determined during the winding of the cop and stored as spinning data that is assigned to the cop. The spinning data assigned to the cop is taken into account when deciding whether to feed the cop after it has been set down to one of the winding positions. The assignment is based on an identification of a point in time of winding of the cop and an identification of the spinning position at which the cop was wound.

The method is used for the automatic operation of a ring spinning system (1) which contains a ring spinning machine (2) having a plurality of spinning positions (21) and a winding machine (3) having a plurality of winding positions (31). Yarn (92) is spun at one of the spinning positions (21) and wound up to a cop (91). For the spinning position (21), values of a parameter characteristic for the operation of the spinning position (21) are determined during the winding of the cop (91) and stored as spinning data. The spinning data are assigned to the cop (91). The cop (91) is set down from the spinning position (21). The spinning data assigned to the cop (91) is taken into account when deciding whether to feed the cop (91) after it has been set down to one of the winding positions (31). The automatic assignment is based on an identification of a point in time of winding of the cop (91) and an identification of the spinning position (21) at which the cop (91) was wound.

The apparatus and methods disclosed herein are directed to detecting the presence of a whipping tail when using a fiber winding system to wind a fiber onto a rotating spool. The fiber is guided onto the rotating spool through a containment region between the spool and a whip shield to create the wound fiber. The whipping tail outwardly extends from the wound fiber and periodically or quasi-periodically passes through a light beam to create a series intensity dips in the light beam, thereby forming a modulated light beam. The modulated light beam is converted into a digital electrical signal made up of electrical pulses having a timing defined by the intensity dips. The measured timing of the electrical pulses is compared to an estimated timing based on the rotating spool to ascertain the presence of a whipping tail.