A banknote pre-wrapping device and a control method for the pre-wrapping film

Abstract

The invention discloses a paper currency pre-wrapping device, and belongs to the technical field of financial equipment. The device comprises a rack, a film supply mechanism, a paper currency pushing mechanism, a paper currency pressing mechanism and a seal cutting mechanism, wherein the film supply mechanism, the paper currency pushing mechanism, the paper currency pressing mechanism and the seal cutting mechanism are arranged on the rack; the device is characterized in that the film supply mechanism comprises an upper film assembly, an upper film motor connected with the upper film assembly, a lower film assembly, a lower film motor connected with the lower film assembly, a detection rotating shaft which is arranged between the upper film assembly and the lower film assembly and matched with a pre-wrapped film, a grating disk connected with the detection rotating shaft so as to achieve movement speed detection and distance detection of the pre-wrapped film and a pre-wrapped film pressure supply assembly. In addition, the invention provides a control method of the pre-wrapped film. Two closed-ring controls are arranged, moving accuracy of the pre-wrapped film printed with two-dimensional-code identifiers and accuracy of moving of the pre-wrapped film after pre-wrapping to a two-dimensional-code printer are ensured, the position error of the two-dimensional-code identifiers on 10 bundles of paper currency is smaller than + / -2 mm, and user needs are met.

Description

technical field [0001] The invention belongs to the technical field of financial equipment, and in particular relates to a method for controlling a pre-wrapping film used for banknote pre-wrapping. Background technique [0002] As the economy continues to grow, the scale of cash circulation continues to increase, the amount of cash in circulation increases, and the issue of currency security is becoming increasingly prominent. Especially with the implementation of "zero tolerance for counterfeit currency" and "full cash sorting" by the relevant regulatory authorities at the end of 2012, step by step to promote the full sorting of bank external cash payments, and realize the recording, storage, uploading, and traceability of serial numbers , Effectively solve the problem of banks paying counterfeit money by mistake. [0003] In order to facilitate banknote management, banks need to carry out sorting, counting, sorting, and bundling of a large number of returned banknotes dur...

AI Technical Summary

Problems solved by technology

[0006] The outer diameter of the upper and lower film rolls in the film supply mechanism will change in real time during use, making the pre-wrapped film loose or tense, and it is difficult to control the moving distance of the pre-wrapped film. The membrane exerts a certain pressure to accurately record its moving distance, but only relying on the swing rod adjustment may cause the motor to start and stop frequently, resulting in increased errors

At the same time, the inertia of the motor when it stops will also cause deviations in the movement of the pre-wrapped film. After a long period of use within the film roll’s life cycle, the two-dimensional code cannot be moved to the specified position accurately.

Images