Drive system for an annealing lehr

Details Drive system for an annealing lehr Drive system for an annealing lehr

1974-12-23

1976-09-14

Werner, Frank E.

Conveyors: power-driven

Conveyor section

Live roll

198784, 198788, 65172, 318 85, B65G 2112

Patent

active

039801705

ABSTRACT:
A drive system is disclosed which is particularly suitable for use in the glass industry. The drive system is for a plurality of conveying mechanisms to support and to move a load which may be discrete glass objects or a strip or sheet of glass. An electrical line shaft is created by using a plurality of squirrel cage synchronous motors which are connected to drive the conveying mechanisms, whether they be transfer mechanisms for discrete objects or rolls for conveying the strip of glass. One or more electrical inverters supply power to the motors so that not only are the motors operated in synchronism but also in phase register. Thus where discrete glass objects are conveyed the phase register of the transfer mechanisms between glass machines prevents glass breakage, and where rolls are conveying a strip of float glass, the phase register prevents difference in phase rotation of the rolls which could mar the surface of the float glass. The drive system also includes the conveying mechanism rolls inside an annealing lehr with the rolls supported in bearing blocks fastened to girders such that the bearing blocks may be lowered to move a particular roll out of physical engagement with the strip of glass within the lehr. This permits rapid replacement of any defective part such as a bearing block, gear drive, or synchronous motor, yet permits uninterrupted production of glass from the lehr.

REFERENCES:
patent: 3382964 (1968-05-01), Bonhoff et al.
patent: 3600655 (1971-08-01), Karlin
patent: 3669243 (1972-06-01), Fischbacher
patent: 3754880 (1973-08-01), Henderson et al.
patent: 3853526 (1974-12-01), Hochart

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