A Hall thickness detection device for sheet medium
A technology of thickness detection and medium, which is applied in the field of Hall thickness detection devices, can solve the problems of small nonlinear area of magnetic flux and inaccurate calculation results, etc.
Active Publication Date: 2018-02-16
GRG BAKING EQUIP CO LTD
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Problems solved by technology
[0004] In order to solve the technical problem that the non-linear area of the magnetic flux detected by the Hall sensor is small in the existing thickness detection device, which makes the calculation result inaccurate, the present invention provides a method that effectively expands the linear range of the Hall sensor detection and can ensure that the Hall sensor The Hall thickness detection device of the sheet medium whose detected magnetic flux basically maintains a linear change
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[0022] In order to further illustrate the Hall thickness detection device for sheet media provided by the present invention, a further detailed introduction will be made below in conjunction with a diagram of a preferred embodiment of the present invention.
[0023] refer to image 3 As shown, a preferred Hall thickness detection device for sheet media provided by the present invention includes: a mounting bracket for installing and carrying the following parts; a reference shaft 1, and its two ends are installed on the On the arrangement frame, a floating wheel assembly 2, the floating wheel assembly 2 includes a bracket 21 and at least one floating wheel 22, one end of the bracket 21 is fixedly installed with the mounting frame through a floating wheel shaft 23, and the other end is rotatably assembled The floating wheel 22 forms a free end, and a torsion spring 24 is arranged between the floating wheel rotating shaft 23 and the support, so that the floating wheel 22 elastic...
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The present invention relates to a processing technology for sheet media, in particular to a Hall thickness detection device for detecting sheet value documents in financial self-service equipment, which includes a mounting frame, a reference shaft, and a floating wheel assembly. The floating wheel assembly includes a bracket and at least one floating wheel. The bracket is installed on the mounting frame through a floating wheel shaft, and the other end is rotatably assembled with the floating wheel to form a free end. A torsion spring is arranged between the floating wheel shaft and the bracket. , so that the floating wheel elastically presses against the reference shaft; the bracket is fixedly installed with a detection block; and a sensor for detecting the displacement of the detection block; The detection center of the floating wheel is on a straight line, and the distance from the axis of the floating wheel to the tangent point of the floating wheel and the reference axis is equal to the detection center point on the surface of the detection block, and the line connecting the tangent point to the axis of the floating wheel is the same as The direction of the sheet media delivery path is at a 45 degree angle.
Description
technical field [0001] The invention relates to a sheet medium processing technology, in particular to a Hall thickness detection device used for detecting sheet value documents in financial self-service equipment. Background technique [0002] In the financial self-service equipment, in order to check each sheet of valuable documents (such as banknotes, checks, money orders, etc.) Image recognition, thickness detection, magnetic information detection and other identification methods are carried out on the separated single sheet valuable documents to ensure the authenticity of the processed thin sheet valuable documents, among which the thickness detection of banknotes is an essential means of identification. At present, sheet-type valuable documents are generally made of special materials into thin-sheet-shaped media with certain thickness characteristics. Through the thickness characteristics of thin-type valuable documents, the tape and corners pasted on the banknotes ca...
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IPC IPC(8): G07D7/164G07D7/04
CPCG07D7/164G01B7/107G01B7/06
Inventor 黎明方敏杰刘梦涛龚文川
Owner GRG BAKING EQUIP CO LTD