Magnetic levitation type slice medium thickness detecting device

Abstract

A magnetic levitation-type sheet medium thickness detection device, comprising: a fixing bracket, which is provided with a pair of mounting side walls (012) and a base plate (011), the base plate (011) being provided thereon with an accommodation slotted hole (0121); a reference shaft (02), with two ends thereof being mounted on the pair of mounting side walls (012) of the fixing bracket via bearings, the reference shaft (02) being fixedly sleeved thereon with a reference roll (021); a detection idle pulley mechanism, which comprises a support (031), the support (031) being mounted thereon with an idle pulley (033) via a bearing (032), the surface of one side of the support (031) opposite to an idle pulley (033) being fixedly provided with a magnetic element (034) thereon, and the detection idle pulley mechanism being freely arranged in the accommodation slotted hole (0121) of the fixing bracket; an elastic package plate (04), which is fixedly mounted on the base plate (011) of the fixing bracket, packages the detection idle pulley mechanism into the accommodation slotted hole (0121), and provides an elastic force of being maintained close to the reference roll (021) for the idle pulley (033), the elastic package plate (04) being provided with a magnetic permeation hole (041) in a position corresponding to the magnetic element (034) in the detection idle pulley mechanism; and a magnetic inductor fixed on the fixing bracket opposite to the magnetic permeation hole (041) and used for detecting the displacement of the magnetic element (034) in a noncontact manner.

Description

technical field [0001] The invention relates to a device for measuring thickness, in particular to a magnetic levitation type thickness detection device for detecting the thickness of sheet-type 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 ...

AI Technical Summary

Problems solved by technology

[0005] Obviously, the existing magnetic levitation thickness detection device has many parts and complex mechanism, and the unavoidable mechanical wear of the detection wheel's rotation around the axis may cause the thickness detection device to fail to correctly reflect the value of the flakes passing through. The thickness value of the file, which leads to the inaccuracy of the detection device, therefore, it is necessary to find a solution to the above technical defects

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