Manufacturing method for rolling special shape at groove of edge part of coin or commemorative medallion

A manufacturing method and technology of commemorative badges, applied to coins, medals, badges, etc., can solve problems such as weak anti-counterfeiting functions, and achieve the effect of guaranteeing production efficiency

Active Publication Date: 2014-01-15
沈阳中钞造币技术研究有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the edge anti-counterfeiting technologies that are widely used on coins include wire tooth technology and word rolling technology. Visual effect, anti-counterfeiting function is very weak

Method used

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  • Manufacturing method for rolling special shape at groove of edge part of coin or commemorative medallion
  • Manufacturing method for rolling special shape at groove of edge part of coin or commemorative medallion
  • Manufacturing method for rolling special shape at groove of edge part of coin or commemorative medallion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for manufacturing coins and medals with edge grooves of irregular shape, comprising the following steps: a, processing the electrodes into quincunx-shaped electrodes includes: a1, making electrode blanks, a2, fixing the electrode blanks on the engraved surface with a clamp machine, and then process it into plum-shaped special-shaped, a3. Connect the electrode handle and special-shaped electrode with fasteners to form a complete special-shaped electrode, such as image 3 As shown; b, processing the chip blank; c, fixing the complete special-shaped electrode and chip blank on the electric discharge forming machine with a jig, and then using the electric discharge forming machine to process the special-shaped quincunx-shaped chip, such as Figure 4 Shown; d, processing the upper and lower splints; e, combining the upper and lower splints and chips to form a bent plate; f, processing the disc, such as Figure 6 As shown; g, fix the disc and the curved plate on the ...

Embodiment 2

[0025] A method for manufacturing coins and medals with edge grooves of different shapes, comprising the following steps: a, processing the electrodes into polygonal electrodes includes: a1, making electrode blanks, a2, fixing the electrode blanks on the engraving machine with a clamp , and then processed into a polygonal shape, a3. Connect the electrode handle and the shaped electrode with a fastener to form a complete shaped electrode; b. Process the chip blank; c. Fix the complete shaped electrode and the chip blank on the EDM with a fixture On the machine, and then use the electric discharge forming machine to process chips with special shapes into polygons; d, process the upper and lower splints; e, combine the upper and lower splints and chips to form a bent plate; f, process the disc; g, fix the disc and the bent plate on On the edging machine, through the extrusion of metal, the side of the flat cake after shaving is formed with grooves and special shapes; h, through em...

Embodiment 3

[0027] Step is with embodiment 1. The shape of the irregular shape in this embodiment is a triangle.

[0028] The coin edge groove technology of the present invention is a coin edge anti-counterfeiting technology, which is to process a circle of grooves on the coin edge by extrusion molding. Usually, the center of the groove on the edge of the coin can also be rolled with words or patterns. During the product printing process, the groove can protect the middle text or pattern, so that the text or pattern in the groove will not be squeezed out by the mold sleeve due to the deformation and expansion of the edge during embossing. The coin side groove rolling special-shaped technology, that is, on the basis of maintaining the circular structure of the protruding groove columns on both sides, a special-shaped structure is processed in the groove, and the combination of the groove and the special-shaped structure is realized on the side of the coin, forming a new type Anti-counter...

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Abstract

The invention discloses a manufacturing method of a coin, particularly relates to a coin or commemorative medallion manufacturing method for rolling a special shape at a groove of an edge part of the coin or a commemorative medallion. The manufacturing method for rolling the special shape at the groove of the edge part of the coin or the commemorative medallion comprises the following steps: a, processing a special-shaped electrode according to designed parameters; b, processing a chip blank; c, fixing the special-shaped electrode and the chip blank on an electric spark forming machine by a clamp, and then processing out a chip by the electric spark forming machine; d, processing an upper clamping plate and a lower clamping plate; e, combining the upper clamping plate and the lower clamping plate with the chip to form a bending plate; f, processing a disc; g, fixing the disc and the bending plate on a side trimming machine, and through metal extrusion forming, forming a groove special shape at the edge part of the side-trimmed blank cake; and h, stamping and forming, and thus obtaining the coin or commemorative medallion having the edge part with the groove rolled with the special shape. The method improves appreciation, collection and anti-falsification of the coin or the commemorative medallion.

Description

technical field [0001] The invention relates to a method for manufacturing coins, in particular to a method for manufacturing coins and medals in which grooves on edges of coins and medals are profiled. Background technique [0002] With the advancement of modern industrial technology, especially the progress of electric processing and engraving technology, the minting technology of various countries in the world today has developed to a new stage on the basis of inheriting the traditional minting technology. At present, the edge anti-counterfeiting technologies that are widely used on coins include wire tooth technology and word rolling technology. Visual effect, anti-counterfeiting function is very weak. Rolling shaped grooves on the edges of coins and medals can increase the difficulty and technical content of coins and medals, enhance the public anti-counterfeiting performance of coins and medals, and improve the appreciation and collection of coins and medals. The pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A44C21/00A44C3/00
Inventor 梁军赖茂明李胜强勾久斌胡云明张晓男张波
Owner 沈阳中钞造币技术研究有限公司
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