An intelligent yarn loading system and a control method are provided. The intelligent yarn loading system comprises a twisting machine, a self-walking trolley and a dispatching control system; the twisting machine is provided with a twisting machine wireless communication module for sending a working state of the twisting machine to the dispatching control system; the self-walking trolley is provided with a trolley wireless controller and a self-walking device for receiving an instruction of the dispatching control system and walking to a station of the twisting machine to take off an empty bobbin, and put a basic yarn on a creel of the twisting machine or take off a finished product package for stacking.

An intelligent yarn loading system and a control method are provided. The intelligent yarn loading system comprises a twisting machine, a self-walking trolley and a dispatching control system; the twisting machine is provided with a twisting machine wireless communication module for sending a working state of the twisting machine to the dispatching control system; the self-walking trolley is provided with a trolley wireless controller and a self-walking device for receiving an instruction of the dispatching control system and walking to a station of the twisting machine to take off an empty bobbin, and put a basic yarn on a creel of the twisting machine or take off a finished product package for stacking.

Method for operating a service unit for processing work orders regarding a cross-wound package/empty tube doffing process employed at spinning machines producing take-up packages that process at least two different lots, whereby the service unit is fed an empty tube via the spinning machine's tube feed track, and the fed empty tube is taken up by the service unit. If the current work order for the cross-wound package/empty tube doffing of the workstations expires before it is processed and the empty tube is exchanged and another work order has come in which is for a workstation requiring a cross-wound package/empty tube doffing for another lot, the already taken up empty tube is released by the service unit, and the service unit takes up an empty tube of another lot in order to be able to carry out a cross-wound package/empty tube doffing process at the other workstation.

Method for operating a service unit for processing work orders regarding a cross-wound package/empty tube doffing process employed at spinning machines producing take-up packages that process at least two different lots, whereby the service unit is fed an empty tube via the spinning machine's tube feed track, and the fed empty tube is taken up by the service unit. If the current work order for the cross-wound package/empty tube doffing of the workstations expires before it is processed and the empty tube is exchanged and another work order has come in which is for a workstation requiring a cross-wound package/empty tube doffing for another lot, the already taken up empty tube is released by the service unit, and the service unit takes up an empty tube of another lot in order to be able to carry out a cross-wound package/empty tube doffing process at the other workstation.

The invention relates to method of controlling a transport vehicle for transporting exactly one sliver can (2) in a spinning mill between a filling station (3) for depositing a sliver into cans (2) and working positions of the cans (2) at workstations of the spinning machines (4), which ensures supplying the spinning machines with full cans (2) with a sliver. A request for can (2) replacement at the respective workstation of the spinning machine (4) is generated on the basis of the information from the spinning machines (4) about the remaining quantity of the sliver in the cans (2) at the individual workstations of the spinning machines (4), or information about the removal of the can (2) by the operator during spinning, the information being passed to the control system (5) of the spinning mill, which on the basis of this request predicts the moment of the conveying of the can (2) by the transport vehicle (1) to the respective workstation and the request is placed into a request queue which is optimized for the maximum utilization of the spinning machines (4) with respect to the current position and working activity of the transport vehicles (1), whereby in order to control the individual transport vehicles (1), data/information from the localization system, as well as data/information from the transport vehicle (1), is evaluated and processed.

The invention also relates to a transport vehicle for performing the above described method.

Method for operating a service unit for processing work orders regarding a cross-wound package/empty tube doffing process employed at spinning machines producing take-up packages that process at least two different lots, whereby the service unit is fed an empty tube via the spinning machine's tube feed track, and the fed empty tube is taken up by the service unit. If the current work order for the cross-wound package/empty tube doffing of the workstations expires before it is processed and the empty tube is exchanged and another work order has come in which is for a workstation requiring a cross-wound package/empty tube doffing for another lot, the already taken up empty tube is released by the service unit, and the service unit takes up an empty tube of another lot in order to be able to carry out a cross-wound package/empty tube doffing process at the other workstation.

Method for operating a service unit for processing work orders regarding a cross-wound package/empty tube doffing process employed at spinning machines producing take-up packages that process at least two different lots, whereby the service unit is fed an empty tube via the spinning machine's tube feed track, and the fed empty tube is taken up by the service unit. If the current work order for the cross-wound package/empty tube doffing of the workstations expires before it is processed and the empty tube is exchanged and another work order has come in which is for a workstation requiring a cross-wound package/empty tube doffing for another lot, the already taken up empty tube is released by the service unit, and the service unit takes up an empty tube of another lot in order to be able to carry out a cross-wound package/empty tube doffing process at the other workstation.

An intelligent yarn loading system and a control method are provided. The intelligent yarn loading system comprises a twisting machine, a self-walking trolley and a dispatching control system; the twisting machine is provided with a twisting machine wireless communication module for sending a working state of the twisting machine to the dispatching control system; the self-walking trolley is provided with a trolley wireless controller and a self-walking device for receiving an instruction of the dispatching control system and walking to a station of the twisting machine to take off an empty bobbin, and put a basic yarn on a creel of the twisting machine or take off a finished product package for stacking.

An intelligent yarn loading system and a control method are provided. The intelligent yarn loading system comprises a twisting machine, a self-walking trolley and a dispatching control system; the twisting machine is provided with a twisting machine wireless communication module for sending a working state of the twisting machine to the dispatching control system; the self-walking trolley is provided with a trolley wireless controller and a self-walking device for receiving an instruction of the dispatching control system and walking to a station of the twisting machine to take off an empty bobbin, and put a basic yarn on a creel of the twisting machine or take off a finished product package for stacking.

A method for removing full bobbins from spindles of a ring spinning machine and for setting down empty sleeves on the spindles using a doffer is disclosed. The doffer has a beam and a rotatable gripping device that is mounted on the beam and has a sleeve gripper and a bobbin gripper, wherein the doffer is arranged next to the ring spinning machine. The beam is raised vertically and the gripping device is extended from the beam over the full bobbin. The invention also relates to a doffer having the corresponding drives.