Clamping head for winding cores

Details Clamping head for winding cores Clamping head for winding cores

1987-11-30

1989-01-03

Stodola, Daniel P.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 681, 279 2R, 269 481, B65H 7524, B23B 522

Patent

active

047951060

ABSTRACT:
A clamping head is equipped with angular spreading bodies which engage a winding core. Impingement of the winding core end face on a stop moves the spreading bodies longitudinally on a bevel of the clamping head core against spring force, thereby spreading the spreading bodies so as to engage the inside circumference of the winding core. To that end, the clamping head features a sleeve-shaped part which centers the winding core and is provided with longitudinally extending slots for the angular spreading bodies. A shank of each spreading body, extends radially outward, forms at least indirectly the stop for the winding core end face. Longitudinally movable in the slot, the other shank of the spreading body has a projection which protrudes radially inward and interacts with the bevel of the clamping head core so as to cause the shank to move beyond the peripheral surface of the sleeve-shaped part as the projection runs onto the bevel.
The clamping head secures the winding core in both nonpositive and form-fitting fashion in that the spreading body shanks dig into the winding core. It is distinguished by a design from components which are relatively simple to manufacture and of which the spreading bodies exposed to wear can be replaced easily.

REFERENCES:
patent: 2075192 (1937-03-01), George
patent: 2922592 (1960-01-01), Kaltenbach
patent: 3648942 (1972-03-01), Lercher et al.
patent: 3791659 (1974-02-01), Hardin
patent: 3881666 (1975-05-01), Greenhalgh
patent: 4284251 (1981-08-01), Castillo
patent: 4715553 (1987-12-01), Hatakeyama et al.

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