Winding frame with monitored secondary travel
View Patent ↗A winder including a frame including at least one spindle configured to support at least one cake, the spindle able to rotate about a first axis approximately perpendicular to the diameter of the cake, and at least one crosswinding device configured to deposit at least one strand on the spindle with a first traversing movement. The strand is further deposited on the spindle by a follower with a second traversing movement. The follower includes a control device for controlling the second traversing movement.
1. A winder comprising:
a frame including at least one spindle, the at least one spindle supporting at least one cake and rotating about a first axis perpendicular to a diameter of the at least one cake;
at least one crosswinding device to deposit at least one strand on the spindle with a first traversing movement, the at least one strand being further deposited on the spindle by an actuator with a second traversing movement;
wherein the actuator includes a control device to control the second traversing movement, the control device including a servomotor to at least continuously control at least one kinematic parameter of the second traversing movement and being configured to determine at all times the actions of the servomotor acting on the second traversing movement and make the crossover ratio of a speed of the spindle to a speed of the crosswinding device (V cross ) and a speed of the secondary traversing movement variable, thereby obtaining a first developed wind angle following an increase in a diameter of the at least one cake different from a second developed wind angle obtained when the crossover ratio and speed of the secondary traversing movement are constant, the first and second developed wind angle being determined from an equation
tan ∝= V cross /V strand ,
wherein ∝ represents a developed wind angle and V strand represents a constant drawing speed.
2. The winder as claimed in claim 1 , wherein the actuator cooperates with the crosswinding device.
3. The winder as claimed in claim 1 , wherein the actuator cooperates with the spindle.
4. The winder as claimed in claim 1 , wherein the crosswinding device includes at least one helical unit mounted to rotate about a second axis approximately parallel to the first axis.
5. The winder as claimed in claim 4 , wherein the at least one helical unit and corresponding drive motor rotating the helical unit are fastened to the actuator including a linear actuator, the linear actuator providing the second traversing movement of the at least one helical unit.
6. The winder as claimed in claim 1 , wherein the crosswinding device includes at least one wheel having at least one groove, the groove positioning and guiding at least one strand, the wheel rotating about a second axis parallel to the first axis.
7. The winder as claimed in claim 1 , wherein the spindle is fixed to a barrel, the barrel being mounted to rotate with respect to the frame about a third rotation axis parallel to the first axis and second axis.
8. The winder as claimed in claim 7 , wherein the barrel includes at least two spindles uniformly distributed along the third rotation axis.
9. The winder as claimed in claim 1 , wherein the spindle is rotated by a kinematic chain, the kinematic chain having a motor integrated into the spindle.
10. The winder as claimed in claim 1 , wherein the spindle and corresponding drive motor rotating the spindle are fastened to the actuator including a linear actuator, the linear actuator providing the second traversing movement of the spindle.