Process for manufacturing copper or iron ore series of noble metal commemorative coins or medals and dies used thereby

A production process and commemorative coin technology, applied to medals, badges, coins, etc., can solve the problems of difficult to guarantee the quality of mold relief, low production cost, insufficient embossed patterns on products, etc., to achieve unique appearance, low production cost, product quality Stable quality effect

Active Publication Date: 2010-11-24
CHINA BANKNOTE PRINTING & MINTING
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problems existing in the above-mentioned prior art, and provides a kind of production process of collar series precious metal commemorative coins or badges that can guarantee product quality, high pass rate, short processing cycle and low production cost; The quality of relief is difficult to guarantee, and the problem of insufficient embossed patterns on the product

Method used

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  • Process for manufacturing copper or iron ore series of noble metal commemorative coins or medals and dies used thereby
  • Process for manufacturing copper or iron ore series of noble metal commemorative coins or medals and dies used thereby
  • Process for manufacturing copper or iron ore series of noble metal commemorative coins or medals and dies used thereby

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Embodiment Construction

[0024] The content of the present invention is described in detail through the examples, but not limited by the examples.

[0025] The method of the present invention takes the preparation of 100g silver collar as an example, its external dimension is 60mm * 35, the waist width is 25.64mm, the long direction arc radius is 33.23mm, the width direction arc radius is 54.64mm, and the corner transition arc radius is 3.70mm. First select the designed length and width parameters, and use the three-dimensional relief design software to design and generate the radius of the arc in the length and width directions, as well as the radius of the transition arc connecting the length and width directions, to form the two-dimensional plane outline of the 100g silver collar curve. Then look for the waist section curve respectively (see curve structure figure 2 ), select a circle with a diameter of 0.05mm at the center of the collar and the contour line as the driving line, and at the same t...

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Abstract

The invention relates to a process for manufacturing copper or iron ore series of noble metal commemorative coins or medals and dies used thereby. The process comprises the following steps: a) preprocessing and molding the blanks of copper or iron ore series of dies, namely, processing the basic profiles of the dies; b) designing the profile parameters of the copper or iron ore and the tri-dimensional curved surface on the surface of the copper or iron ore by a tri-dimensional relief design software; c) engraving the copper or iron ore series of dies by a control computer numerical (CNC) engraving machine via a converted engraving cutting path file; d) utilizing a lathe, a machining center and a linear cutting device to process out a punch and a die corresponding to each other, and punching blank cakes for copper or iron ore series of products; and f) processing copper or iron ore series of die bolsters by the linear cutting device based on the designed size, putting the dies into dies bolsters and carrying out stamping. The copper or iron ore series of noble metal commemorative coins or medals manufactured by the invention have the characteristic of good comprehensive benefits, such as stable quality, high yield, short processing period, low production cost, small raw material consumption and the like.

Description

technical field [0001] The invention relates to a method for preparing precious metal commemorative coins or badges, in particular to a process for making collar series precious metal commemorative coins or badges and a mold used in the process. Background technique [0002] In the past, commemorative coins or chapters were usually simple and regular round products, and there were also special-shaped commemorative coins or chapters such as squares and plum blossoms, but the overall surface of the products was flat and the curves were simple. Its conventional production method is to produce qualified products through the processes of plate punching, smoothing, annealing, polishing and embossing. However, with the development of the situation, it is necessary to produce collar series commemorative coins or chapters with more beautiful and complex shapes, and the shape of such commemorative coins or chapters is complex, the curved surface of the product surface is difficult to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B44B5/00B44B5/02A44C21/00A44C3/00
Inventor 刘志刚吴伟刘洪鹏赵大仲张焕文康今哲时晓么波韦朝宾王永刚张殊慧朱杰刘金龙常智
Owner CHINA BANKNOTE PRINTING & MINTING
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