Casting method of jewellery with large opening cavity, production method of the jelly mould and jelly mould

Abstract

The invention relates to a gel mould used in the casting process of producing the jewelry with open cavity which comprises an upper mould, a lower mould and a mould core in the mould cavity between the upper mould and the lower mould; a pouring channel between the upper mould and the lower mould; wherein, the mould core comprises external mould core and internal mould core, the external mould core is made of gel and the shape of the external mould core is matched with the shape of the cavity, the internal mould core is in rigid strip shape and is inserted into a central hole of the external mould core, and the maximum boundary dimension of the internal mould core is not bigger than the opening dimension of the cavity of the jewelry. When the mould core is taken out, the internal mould core is taken out first and then the external mould core is taken out from the cavity by using the space in the central hole of the external mould core so as to realize the step of taking out the mould core from the cavity opening, the dimension of which is smaller than the maximum dimension of the original external mould core, therefore the casting method is used for processing the jewelry, which can process the cavity with the maximum cavity dimension which is bigger than the dimension of the opening. The invention also comprises the preparation method of the gel mould and the casting method for processing the jewelry with open cavity by using the gel mould.

Description

technical field [0001] The present invention relates to a processing method for jewelry, more specifically, to a casting method for jewelry with an open cavity, the maximum size of the cavity is larger than the opening size of the cavity, and also relates to the processing method The manufacturing method of the rubber mold, and the structure of the rubber mold. Background technique [0002] Jewelry ornaments such as gold and silver come in various shapes. In order to satisfy the preferences of different consumers, many manufacturers have designed various finished products with cavities, such as oval or spherical cavities. When the maximum size of the cavity is larger than the opening size of the cavity, the tube drawing process is usually used to stretch the sheet out of the cavity, and then the mold is used to shape the finished product, such as the chain beads of the necklace. [0003] However, sometimes it is necessary to add patterns, hollows and other appearance featur...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for manufacturing jewelry with an open cavity when the casting process is used to manufacture jewelry with an open cavity. The rubber mold used in the casting process, the core of this rubber mold can be drawn from the opening of the cavity whose largest dimension is larger than the opening size

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