Apparatus for moving a yarn processing device
AssigneeW. Schlafhorst AG & Co.
InventorsAndreas Kruger, Franz-Josef Flamm, Jochen Cuppers, Joachim Stiller, Reinhard Marquardt
Life of this patent
Estimating the term…
Abstract
In connection with a device for retracting and advancing a thread processing element in relation to a threadline it is provided that the retracting and renewed advancing is caused solely by switching on a drive motor in a direction opposite its normal operational direction of rotation. For this purpose a drive member, which is maintained fixed against relative rotation in this direction of rotation, and another drive member which can be rotated in this direction of rotation in relation to the first by way of a drive motor, are provided, which change a rotating movement into an axial movement.
Claims23
Apparatus for moving a yarn processing device out of a yarn travel path in a textile machine when a winding process is stopped, comprising:
- a yarn processing device having a rotational member engageable with a yarn along a yarn travel path during a winding process;
- a drive motor having a forward direction of rotation and a reverse direction of rotation;
- a pair of drive members associated with said drive motor;
- means operable when said drive motor rotates in said forward direction for driving rotation of said rotational member during the winding process and operable when said drive motor rotates in said reverse direction for effecting relative rotational and axial motion of said drive members when the winding process is stopped;
- and
- means for transferring said relative axial motion of said drive members to movement of said rotational member out of possible engagement with the yarn along the yarn travel path.
A drive assembly for moving a yarn processing device out of a yarn travel path in a textile machine when a winding process is stopped, said assembly comprising:
- (a) a drive motor having a forward direction of rotation for when the winding process is occurring and a reverse direction of rotation for when the winding process is stopped;
- (b) drive means associated with said drive motor for actuating rotational motion of a rotational member of a yarn processing device engageable with a yarn along a yarn travel path during forward rotation of the drive motor during the winding process;
- (c) first and second drive members, said first drive member being arranged to rotate when said drive motor rotates in said reverse direction when the winding process is stopped and said second drive member being arranged to be fixed against rotation with said first drive member when said drive motor rotates in said reverse direction when the winding process is stopped;
- (d) means for effecting axial movement of one of said first and second drive members when said first drive member rotates relative to said second drive member when the winding process is stopped;
- and
- (e) means for transferring said axial movement of said one drive member into movement of the yarn processing device when the winding process is stopped for moving the rotational member out of possible engagement with the yarn along the yarn travel path.
Apparatus for moving a yarn processing device with respect to a yarn travel path in a textile machine, comprising:
- a drive motor having a forward direction of rotation and a reverse direction of rotation;
- a pair of drive members associated with said drive motor;
- means operable when said drive motor rotates in said forward direction for effecting relative rest between said drive members and operable when said drive motor rotates in said reverse direction for effecting relative rotational and axial motion of said drive members;
- and
- means for transferring said relative axial motion of said drive members to movement of the yarn processing device.
A drive assembly for moving a yarn processing device with respect to a yarn travel path in a textile machine, said assembly comprising:
- (a) a drive motor having a forward direction of rotation and a reverse direction of rotation;
- and
- (b) drive means associated with said drive motor for actuating motion of said yarn processing device with respect to the yarn travel path, said drive means comprising:
- (i) first and second drive members, said first drive member being arranged to rotate when said drive motor rotates in said reverse direction and said second drive member being arranged to be fixed against rotation with said first drive member when said drive motor rotates in said reverse direction;
- (ii) means for effecting axial movement of one of said first and second drive members when said first drive member rotates relative to said second drive member;
- (iii) means for transferring said axial movement of said one drive member to movement of the yarn processing device;
- and
- (v) a resilient member for urging axially said first drive member and second drive member together.
A drive assembly for moving a yarn processing device with respect to a yarn travel path in a textile machine, said assembly comprising:
- (a) a drive motor having a forward direction of rotation and a reverse direction of rotation;
- and
- (b) drive means associated with said drive motor for actuating motion of the yarn processing device with respect to the yarn travel path, said drive means comprising:
- (i) first and second drive members, said first drive member being arranged to rotate when said drive motor rotates in said reverse direction and said second drive member being arranged to be fixed against rotation with said first drive member when said drive motor rotates in said reverse direction;
- (ii) means for effecting axial movement of one of said first and second drive members when said first drive member rotates relative to said second drive member;
- (iii) means for transferring said axial movement of said one drive member to movement of the yarn processing device;
- and
- (iv) a housing supporting said second drive member against relative rotation with respect to the housing and a free-wheeling device connecting said first drive member with said drive motor, said free-wheeling device being arranged to rotate in said forward direction relative to said housing without causing said first drive member to rotate in said forward direction relative to said housing.
Dependencies are inferred from the claim text.