Automatic traversing control
AssigneeMaillefer S.A.
InventorBruno E. Buluschek
Life of this patent
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Abstract
A sliding base is guided for vertical movement on an upright of the traverse mechanism. It bears a camera having its lens directed along a horizontal axis toward a vertical bank of lights. A drum supported by uprights and driven rotatingly by a motor can move back and forth on rails, while the traversing carriage bearing vertical rolls guiding a cable can likewise move parallel to the axis of the drum in order to check and, if neccessary, modify the approach angle formed by the incoming cable about to be laid on the winding. The silhouette of the zone of the winding where the turns are laid down is formed on a receiving surface within the camera, this surface taking the form of a photodiode grid, the periodic scanning of which yields signals sensing the conditions under which the cable is being wound.
Claims11
An apparatus for automatically controlling a traversing operation which controls the formation of a winding of successive turns and layers on the core of a drum, said turns and layers being formed by a cable coming from a production or treatment line, the eable being attached to the drum, the drum being rotatably driven about its axis on a support, and the cable passing through a cable-guide which is movable relative to the drum support in a direction parallel to the axis of rotation of the drum for guiding the cable at an approach angle, said apparatus comprising:
- projection means for forming an image of the silhouette of a predetermined zone of said winding;
- a receiving surface for receiving the projection of said silhouette;
- sensing means sensitive to said image for generating electrical pulses representing said silhouette;
- means for analyzing and processing said pulses and supplying control signals;
- and
- drive means responsive to said control signals for causing relative movement between said cable-guide and said drum support, said relative movement being automatically controlled according to a predetermined function of the results of the analysis so that the approach angle is held at a constant value upon sensing of a normal image by said sensing means but undergoes a transient variation upon sensing of an abnormal image by said sensing means.
An apparatus for automatically controlling a traversing operation which controls the formation of a winding of successive turns and layers on the core of a drum, said turns and layers being formed by a cable coming from a production or treatment line, the cable being attached to the drum, the drum being rotatingly driven about its axis on a support, and the cable passing through a cable-guide which is movable relative to the drum support in a direction parallel to the axis of rotation of the drum for guiding the cable at an approach angle, said apparatus comprising:
- projection mean for forming an image of the silhouette of a predetermined zone of said winding;
- a receiving surface for receiving the projection of said silhouette;
- sensing means sensitive to said image for generating electrical pulses representing said silhouette;
- means for analyzing and processing said pulses and supplying control signals;
- and
- drive means responsive to said control signals for causing relative movement between said cable-guide and said drum support as a function of the results of the analysis, said drive means comprising first drive means for causing relative movement parallel to sai axis between said cable-guide and said projection means and second drive for causing relative movement parallel to said axis between said drum support and said projection means, both said first and second drive means being responsive to said control signals, and said means for analyzing and processing said pulses determing said relative movement such that said approach angle is held normally at a constant and predetermined value while undergoing transient modification depending on said function.
Dependencies are inferred from the claim text.