Principle and Development of Automatic Punching Machine for Precious Metal Bead Jewelry
Li Jin · Journal of Gems & Gemmology · 2014
Precious metal jewelry in the jewelry market has played an important role,with the continuous improvement of living standards and the rapid growth in consumption of jewelry.Precious metal jewelry market is demanding for efficiency of production processes, which brings new challenges.The factories are constantly improving the processing quality of precious metal jewelry,which require a higher ability.It still remains the reality that processing technology of precious metal jewelry is mainly made by hands.The mechanization and automation technology is still rarely used in this industry,which severely restricts the development and innovation of jewelry processing technology.In recent years,the rapid development of modern high-tech,such as advanced manufacturing technology,mechatronics and computer control technology,brings new life to the technological innovations of precious metal jewelry processing industry.Engineers and technicians should be paid more attention to the jewelry processing industry where modern hightech could be used.Research and development for replacing the manual work by machines become more important for jewelry processing industry to improve production efficiency andprecision.A variety of bead-shaped and olive-shaped precious metal beads are widely applied in the modern market.And processing of such parts is still hand-stamping based.This paper proposed and developed a creative one for bead-shaped and olive-shaped bead jewelry stamping forming automatic equipment,where embedded control systems based on modern design concept are used.The finished device could replace the manual work and automatic process of the round ball and oval based centrosymmetric spherical shape of the jewelry components.In this paper,bead jewelry pieces automation processing system was theoretically studied and practically developed.The main tasks are as follows.The idea of using electromechanical integration equipment to replace manual processing with bead jewelry part of the overall structure of the model is achieved.The model of modules and functions are in-depth analyzed and specifically researched.The whole model of the device is divided into three parts according to the different nature of the structure and mechanical parts.The three parts of most important RD work are the specific content and logical structure.This three-part exists a logical relationship.The mechanical part is the underlying structure,while electronic control portion is the middle layer and the control program portion is the top structure.Reference to the actual processing of the process flow,according to the functional design of mechanical parts,the three body structures are achieved.Designed lifting mechanism,rotating mechanism and feeding mechanism of the body structure,assembled the three component parts,and completed the processing of parts.Based on the completed assemble of mechanical parts and the original motivation for the control of mechanical part and the equipment,it is required for the function of electrical research and analysis part of the composition of the obtained electronic control modules.The appropriate micro-controllers and other electronic components are chosen.Modern technology of circuit design and application are used to design the micro-controller system,the keyboard as input module,the liquid crystal as display module,the motor as drive module,the press control module and the alarm module.Upon completion of the underlying mechanical and electronic control part of the middle layer,based on the state of the stepper motor control requirements and the electronic control system functional requirements of each module and method,the micro-controller is served as a carrier to control the lifting,rotating and feeding mechanism driven stepper motors,and to drive the auxiliary devices such as the matrix keyboard,the relays,the alarm and display control system,using the procedure-oriented structure programming method.