Process and device for the production of a yarn in an open-end spinning device

A process for the production of a yarn in an open-end spinning device of a workstation within a spinning machine, the process comprising of the steps of:

• operating the open-end spinning device of a workstation within a spinning machine at a specified operational production speed to produce the yarn;
• engaging a component of the open-end spinning device with a drive transmission device;
• driving the drive transmission device in such a manner that the drive transmission device drives the open-end spinning device;
• manipulating the drive transmission device to operate the open-end spinning device at a reduced piecing speed as compared to the production speed at a point in time after the open-end spinning device has ceased producing the yarn to allow for proper piecing of the yarn;
• coordinating a fiber feed and a yarn take-up with the reduced piecing speeds to insure the yarn produced during piecing is of the desired quality;
• piecing the yarn during the operation of the open-end spinning device at the reduced piecing speed using a service unit to perform the piecing of the yarn;
• accelerating the open-end spinning device from the reduced piecing speed to the operational production speed at a point in time after the piecing of the yarn occurs by properly manipulating the drive transmission device;
• and
• wherein the drive transmission device is driven by a driving apparatus operably disposed to the service unit.

A process for the production of a yarn in an open-end spinning device of a workstation within a spinning machine, the process comprising of the steps of:

• operating the open-end spinning device of a workstation within a spinning machine at a specified operational production speed to produce the yarn;
• engaging a component of the open-end spinning device with a drive transmission device;
• driving the drive transmission device in such a manner that the drive transmission device drives the open-end spinning device;
• manipulating the drive transmission device to operate the open-end spinning device at a reduced piecing speed as compared to the production speed at a point in time after the open-end spinning device has ceased producing the yarn to allow for proper piecing of the yarn;
• coordinating a fiber feed and a yarn take-up with the reduced piecing speeds to insure the yarn produced during piecing is of the desired quality;
• piecing the yarn during the operation of the open-end spinning device at the reduced piecing speed using a service unit to perform the piecing of the yarn;
• accelerating the open-end spinning device from the reduced piecing speed to the operational production speed at a point in time after the piecing of the yarn occurs by properly manipulating the drive transmission device;
• increasing the rotational speed of the open-end spinning device from the reduced piecing speed towards the operational production speed in a controlled manner during piecing;
• wherein the drive transmission device engages and drives the open-end spinning device at a point in time when production of the yarn within the open-end spinning device has ceased, the drive transmission device engaging a component of the open-end spinning device in a manner that drives the open-end spinning device at a reduced piecing speed;
• and
• wherein the increasing of rotational speed of the open-end spinning device is a function of the diameter of a bobbin winding up yarn produced by the open-end spinning device.

A process for the production of a yarn in an open-end spinning device of a workstation within a spinning machine, the process comprising of the steps of:

• operating the open-end spinning device of a workstation within a spinning machine at a specified operational production speed to produce the yarn;
• engaging a component of the open-end spinning device with a drive transmission device;
• driving the drive transmission device in such a manner that the drive transmission device drives the open-end spinning device;
• manipulating the drive transmission device to operate the open-end spinning device at a reduced piecing speed as compared to the production speed at a point in time after the open-end spinning device has ceased producing the yarn to allow for proper piecing of the yarn;
• coordinating a fiber feed and a yarn take-up with the reduced piecing speeds to insure the yarn produced during piecing is of the desired quality;
• piecing the yarn during the operation of the open-end spinning device at the reduced piecing speed using a service unit to perform the piecing of the yarn;
• accelerating the open-end spinning device from the reduced piecing speed to the operational production speed at a point in time after the piecing of the yarn occurs by properly manipulating the drive transmission device;
• increasing the rotational speed of the open-end spinning device from the reduced piecing speed towards the operational production speed in a controlled manner during piecing;
• wherein the drive transmission device engages and drives the open-end spinning device at a point in time when production of the yarn within the open-end spinning device has ceased, the drive transmission device engaging a component of the open-end spinning device in a manner that drives the open-end spinning device at a reduced piecing speed;
• and
• wherein the increasing of rotational speed of the open-end spinning device is a function of material being spun.

A process for the production of a yarn in an open-end spinning device of a workstation within a spinning machine, the process comprising of the steps of:

• operating the open-end spinning device of a workstation within a spinning machine at a specified operational production speed to produce the yarn;
• engaging a component of the open-end spinning device with a drive transmission device;
• driving the drive transmission device in such a manner that the drive transmission device drives the open-end spinning device;
• manipulating the drive transmission device to operate the open-end spinning device at a reduced piecing speed as compared to the production speed at a point in time after the open-end spinning device has ceased producing the yarn to allow for proper piecing of the yarn;
• coordinating a fiber feed and a yarn take-up with the reduced piecing speeds to insure the yarn produced during piecing is of the desired quality;
• piecing the yarn during the operation of the open-end spinning device at the reduced piecing speed using a service unit to perform the piecing of the yarn;
• accelerating the open-end spinning device from the reduced piecing speed to the operational production speed at a point in time after the piecing of the yarn occurs by properly manipulating the drive transmission device;
• increasing the rotational speed of the open-end spinning device from the reduced piecing speed towards the operational production speed in a controlled manner during piecing;
• wherein the drive transmission device engages and drives the open-end spinning device at a point in time when production of the yarn within the open-end spinning device has ceased, the drive transmission device engaging a component of the open-end spinning device in a manner that drives the open-end spinning device at a reduced piecing speed;
• and
• wherein the increasing of rotational speed of the open-end spinning device is a function of desired characteristics of the yarn to be produced.

A process for the production of a yarn in an open-end spinning device of a workstation within a spinning machine, the process comprising of the steps of:

• operating the open-end spinning device of a workstation within a spinning machine at a specified operational production speed to produce the yarn;
• engaging a component of the open-end spinning device with a drive transmission device;
• driving the drive transmission device in such a manner that the drive transmission device drives the open-end spinning device;
• manipulating the drive transmission device to operate the open-end spinning device at a reduced piecing speed as compared to the production speed at a point in time after the open-end spinning device has ceased producing the yarn to allow for proper piecing of the yarn;
• coordinating a fiber feed and a yarn take-up with the reduced piecing speeds to insure the yarn produced during piecing is of the desired quality;
• piecing the yarn during the operation of the open-end spinning device at the reduced piecing speed using a service unit to perform the piecing of the yarn;
• accelerating the open-end spinning device from the reduced piecing speed to the operational production speed at a point in time after the piecing of the yarn occurs by properly manipulating the drive transmission device;
• and
• wherein the drive transmission device includes a drive transmission wheel.

A process for the production of a yarn in an open-end spinning device of a workstation within a spinning machine, the process comprising of the steps of:

• operating the open-end spinning device of a workstation within a spinning machine at a specified operational production speed to produce the yarn;
• engaging a component of the open-end spinning device with a drive transmission device;
• driving the drive transmission device in such a manner that the drive transmission device drives the open-end spinning device;
• manipulating the drive transmission device to operate the open-end spinning device at a reduced piecing speed as compared to the production speed at a point in time after the open-end spinning device has ceased producing the yarn to allow for proper piecing of the yarn;
• coordinating a fiber feed and a yarn take-up with the reduced piecing speeds to insure the yarn produced during piecing is of the desired quality;
• piecing the yarn during the operation of the open-end spinning device at the reduced piecing speed using a service unit to perform the piecing of the yarn;
• accelerating the open-end spinning device from the reduced piecing speed to the operational production speed at a point in time after the piecing of the yarn occurs by properly manipulating the drive transmission device;
• and
• wherein the drive transmission device engages a supporting disk of the open-end spinning device.

A process for the production of a yarn in an open-end spinning device of a workstation within a spinning machine, the process comprising of the steps of:

• operating the open-end spinning device of a workstation within a spinning machine at a specified operational production speed to produce the yarn;
• engaging a component of the open-end spinning device with a drive transmission device;
• driving the drive transmission device in such a manner that the drive transmission device drives the open-end spinning device;
• manipulating the drive transmission device to operate the open-end spinning device at a reduced piecing speed as compared to the production speed at a point in time after the open-end spinning device has ceased producing the yarn to allow for proper piecing of the yarn;
• coordinating a fiber feed and a yarn take-up with the reduced piecing speeds to insure the yarn produced during piecing is of the desired quality;
• piecing the yarn during the operation of the open-end spinning device at the reduced piecing speed using a service unit to perform the piecing of the yarn;
• accelerating the open-end spinning device from the reduced piecing speed to the operational production speed at a point in time after the piecing of the yarn occurs by properly manipulating the drive transmission device;
• and
• wherein the drive transmission device engages a rotor of the open-end spinning device.

A process for the production of a yarn in an open-end spinning device of a workstation within a spinning machine, the process comprising of the steps of:

• operating the open-end spinning device of a workstation within a spinning machine at a specified operational production speed to produce the yarn;
• engaging a component of the open-end spinning device with a drive transmission device;
• driving the drive transmission device in such a manner that the drive transmission device drives the open-end spinning device;
• manipulating the drive transmission device to operate the open-end spinning device at a reduced piecing speed as compared to the production speed at a point in time after the open-end spinning device has ceased producing the yarn to allow for proper piecing of the yarn;
• coordinating a fiber feed and a yarn take-up with the reduced piecing speeds to insure the yarn produced during piecing is of the desired quality;
• piecing the yarn during the operation of the open-end spinning device at the reduced piecing speed using a service unit to perform the piecing of the yarn;
• accelerating the open-end spinning device from the reduced piecing speed to the operational production speed at a point in time after the piecing of the yarn occurs by properly manipulating the drive transmission device;
• and
• wherein the drive transmission device engages a rotor shaft of a rotor of the open-end spinning device.

A device for the production of a yarn in an open-end spinning device of a workstation within a spinning machine, said device comprising:

• at least one drive transmission device operably disposed to said spinning machine, said drive transmission device engaging a component of said open-end spinning device;
• a driving apparatus engaged with said drive transmission device, said driving apparatus operably driving said drive transmission device;
• a traveling service unit disposed alongside said spinning machine, said service unit traversing said spinning machine and stopping and servicing said workstations as needed or called for;
• a piecing apparatus configured with said service unit, said piecing apparatus piecing said yarn after a cease in production of said yarn in said open-end spinning device in a piecing process in which the desired qualities of said yarn are unaffected by said piecing process;
• and
• a control device in communication with said service unit and said piecing apparatus in a manner that allows said service unit to manipulate said drive transmission device engaged with said open-end spinning device so that said open-end spinning device operates at a reduced piecing speed during said piecing process and then returns said open-end spinning process to an operational production speed after said piecing apparatus properly pieces said yarn.

A device for the production of a yarn in an open-end spinning device of a workstation within a spinning machine, said device comprising:

• at least one drive transmission device operably disposed to said spinning machine, said drive transmission device engaging a component of said open-end spinning device;
• a driving apparatus engaged with said drive transmission device, said driving apparatus operably driving said drive transmission device;
• a traveling service unit disposed alongside said spinning machine, said service unit traversing said spinning machine and stopping and servicing said workstations as needed or called for;
• a piecing apparatus configured with said service unit, said piecing apparatus piecing said yarn after a cease in production of said yarn in said open-end spinning device in a piecing process in which the desired qualities of said yarn are unaffected by said piecing process;
• and
• a control device in communication with said service unit and said piecing apparatus in a manner that allows said service unit to manipulate said drive transmission device engaged with said open-end spinning device so that said open-end spinning device operates at a reduced piecing speed during said piecing process and then returns said open-end spinning process to an operational production speed after said piecing apparatus properly pieces said yarn;
• wherein said control device is in communication with said drive transmission device to permit proper control of said drive transmission device by said service unit during said piecing process;
• wherein said drive transmission device engages said open-end spinning device at a point in time when production of said yarn within said open-end spinning device has ceased, said drive transmission device engaging said component of said open-end spinning device driving said open-end spinning device at said reduced piecing speed;
• wherein said drive transmission device is configured with said service unit;
• wherein said driving apparatus is in communication with said control device, said driving apparatus properly positioning said drive transmission device with respect to said component of said open-end spinning device and driving said drive transmission device which in turn drives said component of said open-end spinning device;
• and
• wherein said component of said open-end spinning device that is engaged by said drive transmission device is a spinning element of said open-end spinning device.

A device for the production of a yarn in an open-end spinning device of a workstation within a spinning machine, said device comprising:

• at least one drive transmission device operably disposed to said spinning machine, said drive transmission device engaging a component of said open-end spinning device;
• a driving apparatus engaged with said drive transmission device, said driving apparatus operably driving said drive transmission device;
• a traveling service unit disposed alongside said spinning machine, said service unit traversing said spinning machine and stopping and servicing said workstations as needed or called for;
• a piecing apparatus configured with said service unit, said piecing apparatus piecing said yarn after a cease in production of said yarn in said open-end spinning device in a piecing process in which the desired qualities of said yarn are unaffected by said piecing process;
• and
• a control device in communication with said service unit and said piecing apparatus in a manner that allows said service unit to manipulate said drive transmission device engaged with said open-end spinning device so that said open-end spinning device operates at a reduced piecing speed during said piecing process and then returns said open-end spinning process to an operational production speed after said piecing apparatus properly pieces said yarn;
• wherein said control device is in communication with said drive transmission device to permit proper control of said drive transmission device by said service unit during said piecing process;
• wherein said drive transmission device engages said open-end spinning device at a point in time when production of said yarn within said open-end spinning device has ceased, said drive transmission device engaging said component of said open-end spinning device driving said open-end spinning device at said reduced piecing speed;
• wherein said drive transmission device is configured with said service unit;
• wherein said driving apparatus is in communication with said control device, said driving apparatus properly positioning said drive transmission device with respect to said component of said open-end spinning device and driving said drive transmission device which in turn drives said component of said open-end spinning device;
• and
• wherein said component of said open-end spinning device that is engaged by said drive transmission device is a supporting disk of said open-end spinning device.

A device for the production of a yarn in an open-end spinning device of a workstation within a spinning machine, said device comprising:

• at least one drive transmission device operably disposed to said spinning machine, said drive transmission device engaging a component of said open-end spinning device;
• a driving apparatus engaged with said drive transmission device, said driving apparatus operably driving said drive transmission device;
• a traveling service unit disposed alongside said spinning machine, said service unit traversing said spinning machine and stopping and servicing said workstations as needed or called for;
• a piecing apparatus configured with said service unit, said piecing apparatus piecing said yarn after a cease in production of said yarn in said open-end spinning device in a piecing process in which the desired qualities of said yarn are unaffected by said piecing process;
• a control device in communication with said service unit and said piecing apparatus in a manner that allows said service unit to manipulate said drive transmission device engaged with said open-end spinning device so that said open-end spinning device operates at a reduced piecing speed during said piecing process and then returns said open-end spinning process to an operational production speed after said piecing apparatus properly pieces said yarn;
• wherein said drive transmission device engages said open-end spinning device at a point in time when production of said yarn within said open-end spinning device has ceased, said drive transmission device engaging said component of said open-end spinning device driving said open-end spinning device at said reduced piecing speed;
• wherein said control device is in communication with said drive transmission device to permit proper control of said drive transmission device by said service unit during said piecing process;
• wherein said control device is in communication with at least a feeding device which feeds fibers to be spun to said open-end spinning device or a draw-off device which draws-off said yarn spun by said open-end spinning device, said control device regulating the speed of said feed device and said draw-off device to control the acceleration of said open-end spinning device during the piecing process;
• and
• wherein said drive transmission device as directed by said control device quickly accelerates said open-end spinning device to the reduce piecing speed from a point in time when said open-end spinning device is at rest, while once the piecing is completed, said control device coordinates the acceleration of said drive transmission device, said feed device and said draw-off device, so that the accelerations are controlled to insure desired qualities in said yarn.

A device for the production of a yarn in an open-end spinning device of a workstation within a spinning machine, said device comprising:

• at least one drive transmission device operably disposed to said spinning machine, said drive transmission device engaging a component of said open-end spinning device;
• a driving apparatus engaged with said drive transmission device, said driving apparatus operably driving said drive transmission device;
• a traveling service unit disposed alongside said spinning machine, said service unit traversing said spinning machine and stopping and servicing said workstations as needed or called for;
• a piecing apparatus configured with said service unit, said piecing apparatus piecing said yarn after a cease in production of said yarn in said open-end spinning device in a piecing process in which the desired qualities of said yarn are unaffected by said piecing process;
• a control device in communication with said service unit and said piecing apparatus in a manner that allows said service unit to manipulate said drive transmission device engaged with said open-end spinning device so that said open-end spinning device operates at a reduced piecing speed during said piecing process and then returns said open-end spinning process to an operational production speed after said piecing apparatus properly pieces said yarn;
• and
• wherein said control device is programmable to factor in at least fiber characteristics or desired yarn characteristics when determining said reduced piecing speed and acceleration curve.

A device for the production of a yarn in an open-end spinning device of a workstation within a spinning machine, said device comprising:

• at least one drive transmission device operably disposed to said spinning machine, said drive transmission device engaging a component of said open-end spinning device;
• a driving apparatus engaged with said drive transmission device, said driving apparatus operably driving said drive transmission device;
• a traveling service unit disposed alongside said spinning machine, said service unit traversing said spinning machine and stopping and servicing said workstations as needed or called for;
• a piecing apparatus configured with said service unit, said piecing apparatus piecing said yarn after a cease in production of said yarn in said open-end spinning device in a piecing process in which the desired qualities of said yarn are unaffected by said piecing process;
• a control device in communication with said service unit and said piecing apparatus in a manner that allows said service unit to manipulate said drive transmission device engaged with said open-end spinning device so that said open-end spinning device operates at a reduced piecing speed during said piecing process and then returns said open-end spinning process to an operational production speed after said piecing apparatus properly pieces said yarn;
• wherein said drive transmission device engages said component of said open-end spinning device before the production of said yarn begins and drives said open-end spinning device during the production of said yarn at the operational production speed, said piecing apparatus disengaging said drive transmission device from said open-end spinning device and said driving apparatus upon servicing said open-end spinning device in a manner in which the open-end spinning device operates at said reduced piecing speed to allow proper piecing of said yarn;
• and
• wherein said piecing apparatus further comprising an actuating element that is interfaceable with said drive transmission device causing said drive transmission device to disengage said open-end spinning device and thereby allowing said driving device to operate said open-end spinning device at a reduced piecing speed.