Paper staging mechanism

摘要

A paper staging mechanism includes a picking mechanism, a separating mechanism and a detecting mechanism. The picking mechanism picks up papers and further transmits the papers rearward. The separating mechanism separates the papers from the picking mechanism and further transmits the separated paper rearward. The detecting mechanism is mounted to rear of the picking mechanism and the separating mechanism. The separated paper by the separating mechanism co-working with the picking mechanism passes rearward through the detecting mechanism. The detecting mechanism detects a relative distance between two adjacent papers which successively pass through the detecting mechanism so as to control the picking mechanism to adjust transmission speed of the papers for achieving a fixed distance between two adjacent papers.

主权项

1. A paper staging mechanism capable of adjusting a relative distance between two adjacent papers in the process of being scanned, comprising:
a picking mechanism including a picking roller assembly, a pressing mechanism and a driving mechanism, the driving mechanism being mounted to a side of the picking roller assembly and driving the picking roller assembly to rotate, the pressing mechanism being located over the picking roller assembly, wherein the picking roller assembly rotates to pick up the paper and further feed the paper rearward under the cooperation of the pressing mechanism pressing against the paper; a separating mechanism mounted to rear of the pressing mechanism and located over the picking roller assembly, wherein the separating mechanism separates the papers from the picking mechanism and further transmits the separated paper rearward; and a detecting mechanism mounted to rear of the picking mechanism and the separating mechanism, the detecting mechanism including a sending component and a receiving component which is apart disposed corresponding to the sending component, wherein the separated paper by the separating mechanism co-working with the picking roller assembly of the picking mechanism passes rearward through between the sending component and the receiving component of the detecting mechanism; wherein the sending component and the receiving component of the detecting mechanism detect the relative distance between two adjacent papers which successively pass through the detecting mechanism, when the relative distance is abnormal, the detecting mechanism feeds back abnormal signals to the driving mechanism, and the driving mechanism controls the rotation of the picking roller assembly to speed up or slow down so as to achieve a fixed distance between two adjacent papers, and wherein the pressing mechanism includes a pressing plate and a pressing roller rotatably mounted to the pressing plate, the pressing plate presses against the paper and the pressing roller is driven by the picking roller assembly to rotate so as to pick up the paper and further feed the paper rearward.