Peening hammer and peening hammer component

Abstract

The invention provides a peening hammer, which comprises a body. One end of the body is provided with a cylindrical driving shaft sleeve part, while the other end is provided with a columnar beating part; the outer end face of the beating part is a beating surface; and the center of the beating part facing the inner end face of the driving shaft sleeve part is provided with a columnar hole along the axis of the column. The peening hammer with the structure has uniform integral wall thickness, cannot shrink or deform in the injection molding process, and has a good structure and flat beating surface. Moreover, a columnar metal body inserted into the columnar hole can indirectly transmit the dynamic of a driving shaft to the beating part of the peening hammer; because the metal body is firmand hard to deform, the contact area of the metal body and the beating part is large, and the metal body and the beating part are firmly contacted, the beating part is uniformly stressed, and the service life of the peening hammer is prevented from being influenced due to severe local abrasion of the peening hammer. In addition, a peening hammer of another printer is correspondingly improved, andthe manufacturing efficiency and product quality of the peening hammer are improved.

Description

technical field [0001] The invention relates to a printing consumable, especially an impact hammer used in an impact printer, and an impact hammer assembly. Background technique [0002] In the banking system or financial market, an impact printer is usually used to print the amount on a check. It hits the dial through the hammer in the printer, and transfers the toner on the carbon ribbon passing between the hammer and the dial to the printing medium. (that is, checks) for printing purposes. The printed check has low error rate and good anti-counterfeiting performance, and can avoid economic loss. [0003] In the transfer system, checks need to be identified by sorting machines and processed uniformly. Therefore, bank checks must have high recognizability, and the integrity and clarity of their handwriting should be higher than that of ordinary-purpose printed handwriting. The use of magnetic ribbon can make the printing clear and complete. The magnetic carbon ribbon is ...

AI Technical Summary

Problems solved by technology

[0013] The impact hammers used in the above two types of impact printers for check printing are cumbersome to produce, and require secondary grinding after each injection molding is completed.

Moreover, even if the hitting surface becomes flat after grinding, the deformation of other parts of the hammer due to uneven wall thickness remains unchanged, which will still lead to uneven hitting strength, and the printed characters will be incomplete, affecting character recognition effect

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