Invention Grant
US08276346B2 Wrapping apparatus and method including metered pre-stretch film delivery assembly 有权
包装设备和方法包括计量预拉伸膜输送组件

Wrapping apparatus and method including metered pre-stretch film delivery assembly
Abstract:
Methods and apparatus for dispensing a predetermined fixed amount of pre-stretched packaging material to a load are disclosed. An amount of pre-stretched packaging material to be dispensed by a packaging material dispenser is determined based upon the girth of the load to be wrapped. Once the amount of packaging material to be dispensed is determined, a ratio of relative rotational speed to packaging material dispenser speed can be set and mechanically controlled. In an alternative embodiment, the ratio is electronically controlled.
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