The invention relates to an automatic turret type yarn winding device. The automatic bobbin changeover process involves winding of yarn on a bobbin, followed by rotation of the turret to bring an empty bobbin into the winding position. Pressure rollers are provided to ensure consistent and accurate winding. The accurate relative positioning of the bobbins and pressure rollers is important. Wear and tear and particulate dust may cause malfunctioning of winder systems which may affect accuracy of turret rotations and relative positioning of the bobbins and pressure rollers, especially when the turret rotation during bobbin changeover stage is done in a single rotation. The invention provides a device and a method to position spindle precisely in turret type automatic winder, especially to identify correct stationing position of turret spindle after reverse movement post doffing. It involves, during the bobbin changeover process, the step of rotating the turret in at least two discrete rotational movements carried out at controlled speeds, whereby the empty bobbin assumes its accurate winding position.

The invention relates to an automatic turret type yarn winding device. The automatic bobbin changeover process involves winding of yarn on a bobbin, followed by rotation of the turret to bring an empty bobbin into the winding position. Pressure rollers are provided to ensure consistent and accurate winding. The accurate relative positioning of the bobbins and pressure rollers is important. Wear and tear and particulate dust may cause malfunctioning of winder systems which may affect accuracy of turret rotations and relative positioning of the bobbins and pressure rollers, especially when the turret rotation during bobbin changeover stage is done in a single rotation. The invention provides a device and a method to position spindle precisely in turret type automatic winder, especially to identify correct stationing position of turret spindle after reverse movement post doffing. It involves, during the bobbin changeover process, the step of rotating the turret in at least two discrete rotational movements carried out at controlled speeds, whereby the empty bobbin assumes its accurate winding position.

A press roller spring frame is provided. The spring frame includes a frame body having a first section having an arcuate shape, a second section extending from the first section and having a substantially planar shape, a third section extending from the first section and having a substantially planar shape. The second and third sections are configured to oppose one another with the first section therebetween. The spring frame further includes a roller operatively coupled to the third section and configured to rotate about an axis. A compressive force may be applied to the roller to displace the third section closer to the second section, whereby the arcuate shape of the first member is compressed. The compression causes the first member to produce a spring force that resists the compressive force applied against the roller to keep the roller against the object applying the compressive force.

A press roller spring frame is provided. The spring frame includes a frame body having a first section having an arcuate shape, a second section extending from the first section and having a substantially planar shape, a third section extending from the first section and having a substantially planar shape. The second and third sections are configured to oppose one another with the first section therebetween. The spring frame further includes a roller operatively coupled to the third section and configured to rotate about an axis. A compressive force may be applied to the roller to displace the third section closer to the second section, whereby the arcuate shape of the first member is compressed. The compression causes the first member to produce a spring force that resists the compressive force applied against the roller to keep the roller against the object applying the compressive force.

A winding device for winding a thread onto a bobbin tube to form a bobbin includes a machine frame, a controller, and a support roller rotatably mounted in the machine frame to support the bobbin tube or the bobbin. A winding mandrel holds the bobbin tube and is pivotally held on a pivot lever that is rotatably mounted on a rotary axis in the machine frame. The pivot lever includes a first and a second lever arm, wherein the winding mandrel is provided on the first lever arm. A linear drive is provided on the second lever arm to move the pivot lever about the rotary axis, wherein the linear drive is connected to the second lever arm via a push rod and an axle bolt and is pivotally attached to the machine frame via a holder. A force measurement device is arranged between the axle bolt and the holder.

A winding device for winding a thread onto a bobbin tube to form a bobbin includes a machine frame, a controller, and a support roller rotatably mounted in the machine frame to support the bobbin tube or the bobbin. A winding mandrel holds the bobbin tube and is pivotally held on a pivot lever that is rotatably mounted on a rotary axis in the machine frame. The pivot lever includes a first and a second lever arm, wherein the winding mandrel is provided on the first lever arm. A linear drive is provided on the second lever arm to move the pivot lever about the rotary axis, wherein the linear drive is connected to the second lever arm via a push rod and an axle bolt and is pivotally attached to the machine frame via a holder. A force measurement device is arranged between the axle bolt and the holder.

A swivel drive for a winding device wherein a thread is wound onto a bobbin tube to form a bobbin includes a swivel axis. A motor is coupled with a drive shaft, wherein the drive shaft has a drive axis. A first gear stage is coupled to the drive shaft, and a second gear stage is coupled to the first gear stage. The second gear stage has a gear output oriented in the swivel axis. The first gear stage includes a first crown gear and the second gear stage includes a second crown gear.

A swivel drive for a winding device wherein a thread is wound onto a bobbin tube to form a bobbin includes a swivel axis. A motor is coupled with a drive shaft, wherein the drive shaft has a drive axis. A first gear stage is coupled to the drive shaft, and a second gear stage is coupled to the first gear stage. The second gear stage has a gear output oriented in the swivel axis. The first gear stage includes a first crown gear and the second gear stage includes a second crown gear.

The invention relates to a vibration-damping apparatus (18) for a winding device (4) of a textile machine (1), which textile machine produces cross-wound packages (5), the vibration-damping apparatus being provided for reducing the vibrations that occur at the pivotably mounted package cradle (8) during the winding operation of the textile machine (1). According to the invention, in order to obtain a vibration-damping apparatus which is unproblematic both with regard to safety and with regard to contamination and which also always ensures a vibrationally relatively stable state of the package cradle, the vibration damper is in the form of a friction damper (20) having friction forces of different intensity depending on the working direction, the friction forces acting as the cross-wound package (5) lifts off during the winding operation being greater than the friction forces acting during the return of the cross-wound package (5).

The invention relates to a vibration-damping apparatus (18) for a winding device (4) of a textile machine (1), which textile machine produces cross-wound packages (5), the vibration-damping apparatus being provided for reducing the vibrations that occur at the pivotably mounted package cradle (8) during the winding operation of the textile machine (1). According to the invention, in order to obtain a vibration-damping apparatus which is unproblematic both with regard to safety and with regard to contamination and which also always ensures a vibrationally relatively stable state of the package cradle, the vibration damper is in the form of a friction damper (20) having friction forces of different intensity depending on the working direction, the friction forces acting as the cross-wound package (5) lifts off during the winding operation being greater than the friction forces acting during the return of the cross-wound package (5).