Centering pin positioning guide structure

Abstract

The invention discloses a centering pin positioning guide structure. The centering pin positioning guide structure comprises a centering pin positioned above a rivet head module; the centering pin ispositioned in middle of a driving block above the rivet head module; a horizontal bent part forwards bent is arranged at the upper end part of the centering pin; a handle, made of elastic plastic, sleeves the outer end of the horizontal bent part; a slide positioning part is arranged at the end, connected with the horizontal bent part, of the handle; and chutes for enabling the slide positioning part to slide up and down are relatively distributed on two sides of the front end of the driving block. The centering pin positioning guide structure has such advantages as simple structure, low cost,convenience to operate, good riveting quality and long service life of the centering pin.

Description

technical field [0001] The invention relates to a centering pin of a pressure riveting assembly in a financial bookbinding machine, in particular to a centering pin positioning and guiding structure. Background technique [0002] The financial binding machine is a binding machine used to bind financial vouchers, bills, etc., including manual binding machines, semi-automatic binding machines and fully automatic binding machines. It is widely used in the binding work of banking, securities, insurance, telecommunications, and schools, institutions, enterprises and institutions and other financial vouchers, bills, account pages, reports, archives, periodicals, documents, drawings, test papers, and books. For the commonly used financial binding machines at present, it generally adopts the working method of hot-press riveting and binding of nylon tubes. Its entire operation process can be divided into steps such as punching, automatic cutting of the tube by the binding machine, th...

AI Technical Summary

Problems solved by technology

And most of existing centering pins are provided with magnets on the driving block, and the centering pins are positioned by the magnets. This kind of structural arrangement adopts magnets to position the centering pins. On the one hand, the cost of the magnets is relatively high, which increases the cost of the binding machine. Overall cost, on the other hand, the magnet is set in the card slot on the drive block, and the magnet is prone to slipping off. When the magnet slips off, even the centering pin loses its magnetic positioning, which affects the riveting quality; Magnetic force is used to attract the centering pin to position the centering pin. The centering pin must be made of iron-containing material, which is easy to oxidize. After a period of use, it is prone to rust, which will affect the riveting quality. It is possible to stain the document to be riveted and affect the appearance of the document

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