Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1980-01-09
1983-04-12
Taylor, Billy S.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
156117, 156397, B65H 8104, B29H 1702, H01F 4108
Patent
active
043795277
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
Technical Field
This invention relates to a toroidal body winding or wrapping apparatus and, more particularly, to an apparatus for driving an open shuttle on an open frame for winding or wrapping said body.
Background Art
Apparatus for winding and wrapping elongate material on a toroidal body using a rotating closed shuttle has been known for some time. The shuttle and support frame of the apparatus has to be manually disengaged and a segment of the shuttle and support frame has to be swung open so as to load a toroidal body in the opening therein. The segments of the shuttle and support frame are then swung shut and secured. The support frame has at least one drive sprocket engaging a gear on the outer periphery of the shuttle with idler rollers carried by the support frame engaging the periphery of the shuttle to guide the shuttle rotation about the axis of the support frame. The sprocket and gear drive has maximum rotational speed of about 100 rpm which limits the winding and wrapping speed accordingly. The idler rollers for the shuttle have eccentric shafts for radial adjustments of the shuttle relative to the support frame. Bearings were mounted in the roller portion of the idlers which make roller replacement very difficult.
The present invention is directed to overcoming one or more of the problems as set forth above.
Disclosure of Invention
A high speed assembly is provided for winding and wrapping toroidal bodies at increased speeds in a semi-automatic or fully automatic manner.
The assembly has a support frame with a C-shaped configuration including a cutaway segment permitting access into the opening in the midportion thereof. A rotating shuttle having a C-shaped configuration with a cutaway segment also permits access into the opening in the midportion thereof. The shuttle is juxtaposed on the support frame with a track or groove in the periphery of the shuttle in which is seated the drive rollers of a plurality of drive roller assemblies carried by the support frame. The drive roller assemblies have pulleys which are engaged by at least one of several drive belts. A motor and brake set drives, stabilizes and brakes the drive belts, pulleys and rollers so as to drive and to brake the shuttle about the center of the support frame.
A latch gate is pneumatically operated to open or close access to the cutaway segment into the open midportion of the support frame. When the gate is open and the cutaway segment of the shuttle is aligned with the cutaway segment of the support frame, a toroidal body can be loaded or unloaded into or from the aligned openings in the midportion thereof.
The shaft for each drive roller assembly passes through a non-concentric bearing sleeve seated in an aperture in the frame and each shaft is keyed to the pulley and to the roller for control and simplified replacement of worn rollers. The non-concentric sleeves are selectively rotatable in the apertures relative to the frame so as to position the rollers in such a way as to center the shuttle relative to the support frame.
The shuttle is rotated at relatively high speeds which necessitates balancing the shuttle as close to ideal as feasible considering the changing conditions to which the shuttle is subjected. The shuttle is balanced when the spool containing the material being wrapped or wound is empty so as to have a minimum effect when completing the wrapping or winding of a body.
BRIEF DESCRIPTION OF DRAWINGS
FIG. 1 is a perspective view of a shuttle driving assembly incorporating the invention therein;
FIG. 2 is a slightly enlarged partial perspective view of the assembly of FIG. 1 with the shuttle exploded away from the support frame;
FIG. 3 is a front elevational view, with parts broken away, of the shuttle driving assembly of FIG. 1;
FIG. 4 is an end elevational view of the shuttle driving assembly;
FIG. 5 is a rear elevational view of the shuttle driving assembly;
FIG. 6 is an enlarged cross-sectional view taken on the line 6--6 of FIG. 5;
FIG. 7 is a cross-sectional view taken on the l
REFERENCES:
patent: 1361945 (1920-12-01), Wheildon
patent: 1669553 (1928-05-01), Derry
patent: 3383059 (1968-05-01), Fahrbach
patent: 3764082 (1973-10-01), Gorman
patent: 3864188 (1975-02-01), Grawey et al.
patent: 4007881 (1977-02-01), Haslau
Albo Ronald T.
Carney, Jr. James E.
Riehl Robert E.
Caterpillar Tractor Co.
Taylor Billy S.
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