Thickness measurement device for sheet-type medium

Abstract

The invention relates to a device which is used for measuring the thickness, in particular to a thickness measurement device for a sheet-type medium. The thickness measurement device for the sheet-type medium comprises a fixing support frame and a reference shaft, wherein the fixing support frame is used for installing and bearing the following parts and components, two ends of the reference shaft are installed on the fixing support frame through bearings, and a reference roller is fixedly connected with the reference shaft in a sleeved mode. At least one floating support frame is arranged on a detection shaft, wherein one end of the floating support frame rotates freely around the detection shaft. A detection roller, a signal generator and an elastic pressing plate are arranged on the floating support frame, wherein the elastic pressing plate presses the floating support frame and keeps the approaching trend between the detection roller 32 and the reference roller 21, the elastic pressing plate is composed of at least two elastic slices, a necessary signal sensor and a data processing unit, wherein the elastic slices are stacked. Due to the fact that system damping is provided through friction between the elastic slices, the output signal impact peak value instantly caused by the fact that the front end of the slice-shaped 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 the output signals is shortened.

Description

technical field [0001] The invention relates to a device for measuring thickness, in particular to a device for detecting the thickness of thin sheets of valuable documents in financial self-service equipment. Background technique [0002] In the financial self-service equipment, in order to inspect each sheet of valuable documents (such as banknotes) processed in batches one by one, it is necessary to separate the stacked sheet of valuable documents one by one, and then separate the separated single sheet of valuable documents Valuable documents are identified by image recognition, thickness detection, magnetic information detection and other identification methods to ensure the authenticity of the processed thin sheet valuable documents. Thickness detection is essential in the entire detection, and thickness detection information can be used To judge the authenticity of the processed thin sheet valuable documents, it can also judge whether the mechanically separated thin s...

AI Technical Summary

Problems solved by technology

Although the above technical solution can overcome the problems caused by the impact, it is easy to cause the detection part to move unsmoothly because of the method of increasing the friction force of the detection part by axial pushing to suppress the impact, and even cause the detection part to be unable to effectively reset or reset. Failure to detect in time

At the same time, the precision of the mechanical structure will directly affect the result, making it difficult to manufacture

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