Apparatus For Rearranging Randomly Oriented Elongated Articles Into Endwise Orientation

What is this patent about?

'703 is related to the field of automated handling of elongated objects, specifically cigarettes, for the purpose of re-orienting them from a random arrangement to an end-wise alignment. This is particularly relevant in cigarette manufacturing where defective cigarettes need to be disassembled to recover the tobacco, requiring the cigarettes to be slit lengthwise. The challenge lies in efficiently and gently re-orienting these fragile objects without crushing or bending them.

The underlying idea behind '703 is to use a combination of parallel moving belts and oscillating plates to manipulate randomly oriented cigarettes. The belts provide a continuous forward motion, while the interleaved plates, moving up and down with phase differences, nudge and turn the cigarettes until they align with the direction of the belts. This coordinated movement gradually coaxes the cigarettes into an end-wise orientation as they travel towards the output station.

The claims of '703 focus on an apparatus comprising a series of parallel belts moving from an input to an output station, interleaved with a series of plates that oscillate vertically with phase differences. A key element is a mechanism at the output station that sweeps between the plates, kicking back any cigarettes that are not yet end-wise oriented. The apparatus is designed to receive randomly oriented cigarettes at the input and deliver them in an end-wise orientation at the output.

In practice, the cigarettes are fed onto the moving belts and, as they travel, the oscillating plates lift and lower different sections of each cigarette. This differential movement, combined with the belts' forward motion, causes the cigarettes to rotate gradually. The plates' sinusoidal motion ensures that cigarettes are repeatedly nudged until they align with the belts. Cigarettes that fail to align are swept back to the input for another pass, ensuring a high degree of final end-wise orientation.

This approach differs from prior solutions by employing a dynamic system of interleaved belts and oscillating plates. Instead of relying on static guides or complex mechanical arms, '703 uses a more gentle and continuous process to re-orient the cigarettes. The recycling mechanism further enhances the efficiency by ensuring that even initially misaligned cigarettes are eventually correctly oriented, minimizing waste and maximizing throughput.