The present disclosure discloses a process for knotting roving packages, comprising steps of: arranging a plurality of roving packages in a single layer or multiple layers; classifying all roving packages into at least one group of roving packages; selecting, from each group of roving packages, two roving packages as a starting roving package and an ending roving package; successively connecting all roving packages in each group of roving packages from the starting roving package to the ending roving package; and, connecting an inner fiber of a roving package other than the starting roving package and the ending roving package in each group of roving packages to an outer fiber of a previous roving package and connecting an outer fiber of this roving package to an inner fiber of a next roving package, or connecting an outer fiber of a roving package other than the starting roving package and the ending roving package in each group of roving packages to an inner fiber of a previous roving package and connecting an inner fiber of this roving package to an outer fiber of a next roving package. By the process of the present disclosure, the labor cost for manually knotting and moving roving packages per unit can be saved, and creels for holding roving packages per unit can also be reduced. This process is a technical improvement of the packaging technology.

An assembly and method for automated cutting of undesired stretched yarn in a yarn system. Stretched yarn can hang away from the yarn system differently than desired yarn. A cutter head is positioned a predetermined distance relative to yarn traveling through the yarn system so that the stretched yarn is cut by the cutter head and the desired yarn passes the cutter head without being cut. A plurality of cutter heads can be used to cut stretched yarn hanging away from the yarn system in different locations.

An assembly and method for automated cutting of undesired stretched yarn in a yarn system. Stretched yarn can hang away from the yarn system differently than desired yarn. A cutter head is positioned a predetermined distance relative to yarn traveling through the yarn system so that the stretched yarn is cut by the cutter head and the desired yarn passes the cutter head without being cut. A plurality of cutter heads can be used to cut stretched yarn hanging away from the yarn system in different locations.

A drum inter-storage of yarn for a textile machine and associated method of control includes a driven rotary drum with a compensatory rotary arm. The rotary drum is coupled with a first drive formed by an electric motor, and a compensatory rotary arm is coupled with a second drive formed by an electric motor, whereby both motors are connected to a control device. The invention also relates to a method of controlling the drum inter-storage of yarn at an operating unit of a textile machine.

A drum inter-storage of yarn for a textile machine and associated method of control includes a driven rotary drum with a compensatory rotary arm. The rotary drum is coupled with a first drive formed by an electric motor, and a compensatory rotary arm is coupled with a second drive formed by an electric motor, whereby both motors are connected to a control device. The invention also relates to a method of controlling the drum inter-storage of yarn at an operating unit of a textile machine.

An assembly and method for automated cutting of undesired stretched yarn in a yarn system. Stretched yarn can hang away from the yarn system differently than desired yarn. A cutter head is positioned a predetermined distance relative to yarn traveling through the yarn system so that the stretched yarn is cut by the cutter head and the desired yarn passes the cutter head without being cut. A plurality of cutter heads can be used to cut stretched yarn hanging away from the yarn system in different locations.

An assembly and method for automated cutting of undesired stretched yarn in a yarn system. Stretched yarn can hang away from the yarn system differently than desired yarn. A cutter head is positioned a predetermined distance relative to yarn traveling through the yarn system so that the stretched yarn is cut by the cutter head and the desired yarn passes the cutter head without being cut. A plurality of cutter heads can be used to cut stretched yarn hanging away from the yarn system in different locations.

The invention relates to a device and method for removal of yarn, especially faulty yarn, from an inter-storage at an operating unit of a textile machine. The yarn to be removed from the drum of the drum inter-storage is moved from the drum by a force exerted in the direction of the longitudinal axis of the drum towards the end of the drum and/or outside the drum, from where the yarn is sucked off.

The invention relates to a device and method for removal of yarn, especially faulty yarn, from an inter-storage at an operating unit of a textile machine. The yarn to be removed from the drum of the drum inter-storage is moved from the drum by a force exerted in the direction of the longitudinal axis of the drum towards the end of the drum and/or outside the drum, from where the yarn is sucked off.

Accumulation-type thread feeder including: a body, which bears a rotary drum on which turns of thread from a spool are wound; a tension sensor for detecting value of tension of exiting thread and a detector for detecting thread quantity accumulated on the drum; a light-reflecting element on the drum or functionally associated therewith, such light generated by light a generator borne by a support arranged alongside the drum, the support associated with a detector to detect light reflected by the reflecting element, the reflected light varying as a function of the quantity of thread wound on the rotary drum, the detection allowing detection of such thread quantity. The detector is a light-sensitive member directly receiving the light reflected by the reflecting element along the entire surface of the drum, the member allowing determination of thread density on the drum.