Impression and manufacturing device and method for coin middle with hole and its analogs
A technology of a manufacturing device and a manufacturing method, applied in the field of coin and the like manufacturing, can solve the problems of large coaxiality error, inability to meet the production of electroplating coating materials, poor surface quality and aesthetics, etc., to ensure the coaxiality Effect
Active Publication Date: 2009-08-19
CHINA BANKNOTE PRINTING & MINTING
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Problems solved by technology
This production method has the following defects: a) when the hole is punched, there will inevitably be collapse, flanging, deformation and burrs in the inner hole, and the pattern has been formed after embossing, so it is quite difficult to trim; b) the hole is punched Finally, the coaxiality error between the center hole and the outer circle of the product is relatively large; c) It can only be applied to the production of single metal materials, and cannot meet the production of electroplating cladding materials, so the product surface quality and aesthetics are poor
Method used
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Embodiment Construction
[0016] This embodiment is a stamping manufacturing device for a coin with a hole in the middle, such as figure 1 and figure 2 As shown, the upper stamp 5 and the lower stamp 8 are respectively made with required patterns and concentric center holes. The lower die 8 is installed on the lower die base of the power source of the embossing machine, and can be driven to reciprocate up and down. The upper end of the upper stamp 5 is fixed on the lower end of the upper die base assembly through the mold cover 10 . The upper die base assembly is made of the upper die base 11 and the push block 2 and the disc 13 which are fixedly connected as one, and is installed in the middle part through hole of the rear die base body assembly to form a pair of moving up and down. The lower end of the stepped cylindrical push block 2 is pressed on the upper die base 11, and the upper end is inserted in the corresponding hole of the disc 13 and fixed. Upper die base 11 is shaped on the central ho...
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The present invention mainly relates to an embossing manufacturing device for coins and the like, and also relates to a corresponding manufacturing method, belonging to the technical field of coin and the like manufacturing. The device includes an upper mold and a lower mold with a central hole; the upper end of the upper mold is fixed on the lower end of the upper mold base assembly, and the upper mold base assembly is also formed with a central hole, forming a vertical movement pair with the rear mold base assembly. A positioning block is fixed in the rear mold base body assembly, and a positioning mandrel that passes downwards through the center hole of the upper impression mold and the upper mold base is fixed on the positioning block. An elastic part is installed between the upper mold base assembly and the rear mold base body assembly to make the upper die tend to the upper limit position, and the upper end of the upper mold base assembly is equipped with a downward ejector. During embossing, it goes through the steps of compound blanking, surface treatment, blank cake positioning, embossing positioning, double-sided embossing, ejection and discharging. After adopting the invention, the continuous production of coins with a hole in the middle and the like can be realized with guaranteed quality and quantity, and various defects existing in the prior art can be avoided.
Description
technical field [0001] The present invention mainly relates to an embossing manufacturing device for coins and the like, and also relates to a manufacturing method for the coin with a hole in the middle and the like, and belongs to the technical field of coin and the like manufacturing. Background technique [0002] The process technology for making coins with a hole in the middle and the like is not only an important technical means to realize the anti-counterfeiting of the coins and the like, but also improves the collection value of the coins and the like. However, it is very difficult to achieve mass production of coins with a hole in the center and the like. According to the applicant's understanding, the main reason is that there is no stable and reliable manufacturing method for mass production because there is no stable and reliable embossing device and mold. At present, the main production methods of coins with holes in the middle of the country and their analogues...
Claims
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IPC IPC(8): A44C21/00B21D28/02B44B5/00B44B5/02
Inventor 邵继南檀世明陆海李爱民
Owner CHINA BANKNOTE PRINTING & MINTING