US 4,022,391 AGranted

Spooling machine system and method to wind multi-layer spools, particularly for wire, tape and the like

AssigneeDrahtwarenfabrik Drahtzug Stein GmbH & Co. KG

InventorsRudolf Stein, Werner Schmitt

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Abstract

To provide properly layered windings on a rotating spool, for example on a flanged spool carrier, the material is guided towards the spool at a predetermined angle of attitude, so that the windings on the spool body fall adjacent each other; the traverse of the spool with respect to the material supply position is so controlled, by means of an electronic control system, considering the width of the spool, the thickness of the material and winding speed, that the material will be wound on the spool pressed against the next previously applied winding and, at the end layers, the relative traverse speed (for example by axial shift of the winding spindle) is so controlled that, just before and after the formation of superimposed windings, the attitude angle of the supplied material will tend to become zero and then, after formation of a new winding layer, the attitude angle will reach the predetermined value.

Claims31

Dependent claims

Controlled spooling machine system for layer windings of elongated materials (1) having circular, elliptical, or polygonal cross section, on a rotating spool (3) having a predetermined axial extent, comprising

winding speed sensing means (28) sensing the speed of the spool and deriving a winding speed signal (29) representative of speed of rotation of the spool;
means (9) providing a material size signal (91) representative of the width of the material;
a guide means (2) guiding the material towards the spool so that the material will define an angle of attitude (.alpha.) with respect to a plane transverse to the axis of rotation of the spool;
means (20, 21, 22) sensing the attitude angle (.alpha.) of the material as it is supplied to the spool, at any instant, and providing an attitude signal (23, 39);
traverse means (35, 64, 69, 70) effecting relative axial traverse movement between the spool (3) and the guide means (2) to effect progressive adjacent winding of the material on the spool and the formation of superimposed layers between the axial limits of the spool, and
traverse control means (19, 24) controlling said traverse means (35) and having said winding speed signal, said material size signal (91) and said attitude signal applied thereto and providing a command output signal to said traverse means (35) to command the relative position between said guide means (2) and the instantaneous axial position of the spool (3) such that the material, as it is wound on the spool, is pressed against the next previously applied winding on the spool, by controlling the attitude angle (.alpha.) of the material with respect to the spool, as the material is wound on the spool, to reach a predetermined value, and to change the speed of the relative traverse movement in predetermined axial ranges (6, 8) of material placement on the spool, and occurring just before, and after the formation of superimposed windings adjacent the axial ends of the spool such that the attitude angle (.alpha.) will tend to become zero as the wire is wound on the spool and approaches an axial end thereof, and, then after formation of a new winding layer, the attitude angle is again controlled to reach said predetermined value.

3 more elements

In a method to wind elongated material on a wind-up spool, in which the wind-up spool (3) is rotated, said material is guided to the spool by a guide means (2), and the spool (3) and the guide means (2) are moved axially relative to each other to provide for traverse of the material being wound on the spool, the material defining, with respect to a plane transverse to the spooling axis, an attitude angle (.alpha.), the steps comprising

a. sensing the speed of rotation of the spool and deriving a winding speed signal;
b. sensing the width of the material being wound on the spool and deriving a material size signal;
c. sensing the attitude angle of the material being wound on the spool and deriving an attitude signal;
d. sensing when the material being wound on the spool has reached an axial extent thereon corresponding to the limit of a first end range (6) and deriving a distance signal;
and
e. controlling the traverse speed under control of said speed signal, said size signal, said attitude signal, and said distance to provide for
e. 1. a controlled attitude angle of winding when the material is adjacent an axial limit of the spool to be an angle of about zero, and continuing winding to cause said angle to increase by adjacent wrapping of said material;
e. 2. a controlled attitude angle of a predetermined value when, as determined by said attitude angle signal, the material has reached an intermediate winding range (7) extending axially of said spool, and during winding throughout said intermediate range;
e. 3. a decreasing attitude angle when the material is being wound at the second end range (8) of the spool to decrease from said predetermined angle to an angle of about zero;
e. 4. said winding to form a second layer, said angle continuing to be zero and permitting building up of adjacently located windings until the attitude angle, in the reverse direction, again reaches said predetermined value;
and repeating steps (e)-2, (e)-3, and (e)-4.

8 more elements

Dependencies are inferred from the claim text.