Thickness measurement device for sheet-type medium

摘要

A thickness measurement device for a sheet-type medium comprises: a fixing frame (1), used for installing and bearing the following parts and components; a reference shaft (2), having two ends installed on the fixing frame (1) through bearings, wherein a reference roller (21) is fixedly fitted on the reference shaft (2); a detection shaft (3), wherein at least one floating support frame (31) having one end capable of rotating freely around the detection shaft (3) is arranged on the detection shaft (3), and a detection roller (32) and a signal generator (33) are arranged on the floating support frame (31); an elastic pressing plate (4), for pressing against the floating support frame (31) to keep an approaching trend between the detection roller (32) and the reference roller (21), wherein the elastic pressing plate (4) is composed of at least two elastic sheets; a signal sensor (5); and a data processing unit. By means of the device, system damping is provided through friction between the elastic sheets, an output signal impact peak value instantly caused by the fact that a front end of the sheet-type medium crushes into a floating support frame bearing and a power shaft meshing point at a certain speed is reduced, and the adjustment time of oscillation of an output signal is shortened.

主权项

1. A device for detecting the thickness of a sheet-type medium, comprising:
a fixing frame configured to support and install the following components; a reference shaft having two ends installed onto the fixing frame through bearings, and receiving a power as an input power source for a sheet-type medium, with a reference roller being fixedly fitted on the reference shaft; a detection shaft having two ends fixedly installed onto the fixing frame, the detection shaft being provided thereon with at least one floating support frame which has one end capable of rotating freely about the detection shaft, and a detection roller being freely rotatable and provided on a free end of the floating support frame, and a signal generator being fixedly provided at the free end of the floating support frame on a side opposite to the detection roller, with the detection roller being arranged in elastic contact with the reference roller; an elastic pressing plate having one end fixed to the fixing frame and the other end forming a free end and applying a pressing force to the floating support frame in a direction towards the reference roller; and a signal inductor arranged on the floating support frame and corresponding to the signal generator, wherein the elastic pressing plate is composed of at least stacked two elastic sheets and the elastic sheets have one end relatively fixed and the other end forming a freely stacked state; the number of the floating support frames is twelve groups, the elastic pressing plate is a strip-shaped elastic plate, and twelve elastic pressing bars corresponding to the floating support frames are extended from the elastic plate.