| 摘要 |
<p>A fluid controlled and actuated belt (B) driven, live roller (R), accumulator conveyor (10) includes an improved article sensor (33) and control valve (CV), and accumulates articles (L) of varying shape and weights of, for example, from less than 1 pound up to about 100 pounds with no fluid pressure adjustment. Loads of up to 300 pounds are handled merely by increasing fluid pressure and with no structural changes. An article sensor (33) provides a significant mechanical advantage for operation of the control valve (CV) in each zone and, in conjunction with a normally open control valve (CV), provides an accumulator for handling such wide range of article weights. A brake (25,26) is pivoted directly on a tension roller pivot (15) to brake an article (L) when the tension roller (T) is dropped out. </p> |
