Long magnetic strip sensor for banknote authentic identification and positioning method

Abstract

The invention discloses a long magnetic strip sensor for banknote authentic identification and a positioning method. Two protrusions are fixedly arranged at the two ends of a support of the long magnetic strip sensor. The free surface of each bulge comprises a platform and a positioning column. The distances between the two positioning columns and the platform on the same bulge are equal. A long magnetic strip sensor body is fixed to the platform in an attached mode through the side faces of the two ends of the long magnetic strip sensor body, and when the long magnetic strip sensor body is installed in a financial machine tool with the banknote authentic identification capacity, it can be guaranteed that the long magnetic strip sensor body and the transmission bristle wheel are parallel in the axial direction only by making the positioning columns make contact with outer rings of two transmission shaft bearings of a transmission shaft respectively. The assembly process is greatly simplified. Each banknote can pass through the long magnetic stripe sensor body in parallel under the rotation driving of the transmission bristle wheel, and the accuracy of a reading result of magnetic induction is ensured, so that the accuracy of a banknote authentic identification result is ensured.

Description

technical field [0001] The invention relates to the field of financial equipment, in particular to a long magnetic strip sensor and a positioning method for banknote authentication. Background technique [0002] With the development of social economy, the circulation of banknotes is also increasing, resulting in more use of various financial instruments to process banknotes. But at the same time, the problem of counterfeit banknotes has also begun to appear, so there are more and more financial instruments with the ability to detect counterfeit banknotes. The previous financial equipment did not have a clear and unified technical index, but mostly adopted industry standards or enterprise standards as the design basis. Beginning in 2018, led by the People's Bank of China, with the participation of many banks and enterprises, clear performance indicators have been put forward for financial equipment, mainly reflected in improving the speed of counting money, improving the abi...

AI Technical Summary

Problems solved by technology

If the long magnetic strip sensor is not parallel to the driving hair wheel, the banknotes driven by the driving hair wheel cannot pass through the long magnetic strip sensor in parallel, and the result of the magnetic detection will be Inaccurate, even when the same banknote is facing different sides, the strength of the magnetic signal collected by the long magnetic strip sensor may be different

This will obviously lead to the failure of counterfeit identification

[0005] However, in actual installation, when the bracket is fixed to the frame of a financial machine tool, in order to adjust the distance between the long magnetic strip sensor and the rotating hair wheel, the hole used to position the long magnetic strip sensor on the frame It is a waist-shaped hole. When manually installed, the long magnetic strip sensor is prone to offset, so it is difficult to ensure that the distance between the two ends is the same as that of the rotating hair wheel, and the long magnetic strip sensor cannot be accurately positioned, so the long magnetic strip sensor cannot be guaranteed. parallel to the drive shaft

[0006] At the same time, the surface of the long magnetic strip sensor and the magnetic head plate are fixed by welding or bonding. In the process of welding or bonding, the solder or bonding material is prone to uneven distribution. The long magnetic strip sensor and the magnetic head There are often uneven spacing between the boards, so that the long magnetic strip sensor cannot be assembled flat, resulting in errors; due to the uneven thickness of the magnetic head boards in the manufacturing process, there will inevitably be unequal distance errors, In the prior art, the fixing method between the magnetic head plate and the support will cause the two errors to be superimposed on each other, and the installation error between the support and the transmission shaft will lead to long magnetic Accurate installation of bar sensors is very difficult and inefficient

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