Irregular coin edge knurling device, edge knurling process and manufacturing method for edge knurling mould thereof

Abstract

The invention provides an irregular coin edge knurling device, which comprises a cake delivery positioning device and an edge knurling device, wherein the cake delivery positioning device comprises a feeding hole, a driving device, a rotating disk, a connecting disk, a cake delivery sliding guide, a guide block, a receiving barrel, a cake pushing tongue and other driving device; the rotating diskis coaxial with the rotating shaft of the driving device; the connecting disk is sleeved in the rotating disk and provided with a notch; the cake delivery sliding guide is connected with the rotatingdisk; the guide block is arranged in the cake delivery sliding guide; and the other driving device is used for driving the cake delivery tongue; the edge knurling device comprises an edge knurling mould, a cake carrying tray, a first synchronous driving device and a second synchronous driving device; and the edge knurling mould consists of an edge knurling mould fixing block and a rotating block.Compared with the prior art, the device has the advantages of more accurate positioning of the blank cake, higher accuracy of the mould curve and capabilities of ensuring normal high-speed running ofthe entire device in a longer time and conveniently and quickly realizing mass production of knurled edges of the irregular coin blank cakes.

Description

technical field [0001] The invention relates to a special-shaped coin hemming equipment, in particular to a special-shaped coin hemming equipment and process for the special-shaped coin blank cake hemming process, and a method for manufacturing the hemming mold thereof. Background technique [0002] In the current coin production process, in order to form a uniform and full clear edge after the pattern embossing process, it is necessary to carry out the hemming process before the embossing process, so that the metal on the edge of the blank cake flows to the front and back sides of the blank cake, while Form a circle of evenly raised edges. [0003] Most of the coins circulating in the market today are round. However, for special-shaped coins with new anti-counterfeiting capabilities, it is rare to see related equipment that can realize the hemming process. [0004] Patent No. 200510095466.5 discloses a device for hemming the edge of regular polygonal coins and their analog...

AI Technical Summary

Problems solved by technology

[0003] Most of the coins circulating in the market today are round, but for special-shaped coins with new anti-counterfeiting capabilities, it is rare to see related equipment that can realize the hemming process

[0004] Patent No. 200510095466.5 discloses a device for hemming the edge of regular polygonal coins and their analogs. Although the device can realize the hemming of regular polygonal coins, the device only relies on electromagnetic oscillating funnels to adjust The phase of the flat cake, and the correct phase of the flat cake cannot be ensured during the pushing process and the process of descending to the initial position of the hemming, and the precise positioning of the flat cake cannot be achieved

The manufacturing method of the hemming device is to first make a forming hemming gauge whose outer shape is consistent with a regular polygonal flat cake, and then use the hemming gauge to roll the hemming mold to form a corresponding mold curve; the problem is that the forming hemming gauge There is a big difference between the outer shape of the biscuit and the actual shape of the flat cake after rolling, and the accuracy of the mold curve formed by its rolling is difficult to meet the expected requirements

[0005] In addition, the driving device of the existing special-shaped coin hemming device for driving the cake pushing part is a cam driven by a motor belt. Errors, these will lead to a decrease in the operating accuracy of the cake pushing parts, making the entire device unable to operate normally

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