Device for acquiring image of slice medium

摘要

An image acquiring device for a sheet-type medium includes an upper passage plate and a lower passage plate, a gap being reserved between the upper passage plate and the lower passage plate to form a passage; at least two driving wheels mounted on the lower passage plate, and configured to drive the sheet-type medium entered into the passage to advance along the direction of the passage; at least two floating pinch rollers mounted on the upper passage plate, and each being mounted cooperatively with a respective driving wheel and being tangent to the driving wheel at a tangential point, and being configured to apply a pressure to the sheet-type medium to allow the sheet-type medium to cling to the driving wheel; and an image collecting device, mounted between two sets of the driving wheels and the floating pinch rollers, and configured to collect an image of the sheet-type medium.

主权项

1. An image acquiring device for a sheet-type medium, comprising:
an upper passage plate, mounted cooperatively with a lower passage plate, with a gap being reserved between the upper passage plate and the lower passage plate to form a passage; the lower passage plate, mounted cooperatively with the upper passage plate, with the gap being reserved between the lower passage plate and the upper passage plate to form the passage; a driving wheel, with at least two driving wheels mounted on the lower passage plate, and the driving wheels being configured to drive the sheet-type medium entered into the passage to advance along the direction of the passage; a floating pinch roller, with at least two floating pinch rollers mounted on the upper passage plate, and each of the floating pinch rollers being mounted cooperatively with a respective driving wheel and being tangent to the driving wheel at a tangential point, and being configured to apply a pressure to the sheet-type medium to allow the sheet-type medium to cling to the driving wheel, and an image collecting device, mounted between two sets of the driving wheels and the floating pinch rollers, and configured to collect an image of the sheet-type medium in a process of the sheet-type medium passing through the passage; wherein all tangential points are located in the passage, and are located in a plane in parallel with an advance direction of the passage.