Winding – tensioning – or guiding – Convolute winding of material – With cutting – perforating – or notching
Patent
1994-07-01
1996-04-16
Stodola, Daniel P.
Winding, tensioning, or guiding
Convolute winding of material
With cutting, perforating, or notching
B65H 3504
Patent
active
055074502
DESCRIPTION:
BRIEF SUMMARY
The invention concerns the winding of continuous webs, and has more particular reference to an apparatus which will allow the automatic unloading of a full reel and the introduction of a prepared reel core in lieu thereof.
According to the present invention there is proposed a reel winding apparatus comprising spaced side-by-side support drums, a support gantry engageable with a roll core supported on and between said drums, a transfer means adapted to support at least one prepared replacement roll core and to deliver said core to the drums for support thereby, pressure loading means engageable with the core or material wound thereon and adapted to urge said core or material into engagement with one at least of said drums, and splice cutting means positioned between the drums and adapted for cooperative engagement with a web passing between said drums, the support gantry being engageable with a web roll on said drums and being pivotal to unload said roll therefrom, said web being urged into splicing engagement with said cutting means by movement of a replacement core towards the support drums.
According to a preferred feature the support gantry includes a carriage freely movable relative thereto and the carriage including actuable hook means engageable with a roll core.
According to a further preferred feature the carriage is movable relative to the support gantry by rack and pinion means operable against a toothed reaction plate, the extent of movement of the carriage being determined by a combination of the rotational and translational motion of the pinion.
According to a still further preferred feature, the transfer means includes a pivoted cam lever to receive a roll core and movable hook means engageable with a roll core supported on said lever to locate the core relative to a support drum.
The invention will now be described further, by way of example only, with reference to the accompanying drawings illustrating one embodiment thereof and in which:
FIGS. 1a to 1d show, in diagrammatic manner, the successive stages in winding continuous web material and shows the introduction of a new core and the unloading of a wound reel; and
FIG. 2 is a front elevation of winding apparatus constructed in accordance with the invention.
Referring firstly to FIGS. 1a to 1d, FIG. 1a shows a full reel 11 supported on driven support drums 12, 13 and ready for unload, the weight of the reel being supported in part by a main reel carriage 14 mounted for pivotal motion about the rotational axis 15 of the downstream support drum 13. The web 16 being wound is drawn from a continuous supply thereof, not shown, and passes around fixed guide rollers 17, 18 and over the upstream support drum 12.
A riding roll 19, intended for pressure contact with the reel during initial reel build up, is in a retracted position above the full reel 11 and a prepared reel core 21 is positioned for movement into engagement with the upstream support drum 12 on displacement of the full reel 11 from downstream support drum 13.
A splicing blade 22 is provided between support rolls 12, 13 and is movable from the retracted position shown in FIG. 1a into operative cutting relationship with the web 16, as will hereafter become apparent.
In the arrangement of parts shown in FIG. 1a both of the support drums 12, 13 are being driven.
Once the reel 11 has attained its requisite size the main reel carriage 14 is pivotted to move the reel out of contact with the upstream support drum 12, the prepared reel core 21 is moved to a position above drum 13, and the splicing blade 22 is moved to a ready position immediately below the web 16. This relative disposition of parts is shown in FIG. 1b.
On further movement of the reel core 21 towards the downstream support drum 13, the web 16 is displaced so as to engage splicing blade 22, the leading edge of the cut web wrapping about the reel core 21 to engage a double-sided adhesive tape thereon and such core being loaded into pressure contact with drum 12.
The splicing blade 22 is now retracted, the downstream support dru
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Marcelo Emmanuel M.
Stodola Daniel P.
Warburton Holgate Limited
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