| In recent years,with the continuous development of the manufacturing industry towards intelligent manufacturing,the application of automated production systems has been promoted.As an important part of it,automatic feeding devices have ushered in broad application prospects.As an important part of it,automatic feeding devices have ushered in broad application prospects.Electromagnetic vibration feeder is a common automatic feeding device,which has simple structure,convenient operation,cost-effective use,and is suitable for various working environments.Compared with other types of feeding devices,it has a broader application market.Due to the numerous parameters involved in the design and manufacture of electromagnetic vibration feeders,unreasonable selection of each parameter will lead to problems such as low efficiency,high energy consumption,poor vibration isolation,and high noise of electromagnetic vibration feeders.Therefore,it is necessary to analyze and study the electromagnetic vibration feeder to find the optimal design parameters.1.According to the structure and feeding principle of electromagnetic vibration feeder.Firstly,a kinematic model was established to study the conditions required for the "sliding" and "throwing" motions of the material.The average feeding speed of the material under various motion forms was derived,and the selection of motion parameters was analyzed and studied.Then,by establishing a dynamic model,the dynamic characteristics of the electromagnetic vibration feeder are analyzed.2.The structure optimization design of the electromagnet,the power driving component of the electromagnetic vibration feeder,was carried out.On the premise of ensuring the basic working performance of the electromagnet,minimize the volume and loss of the electromagnet.The optimization results show that the volume of the optimized electromagnet decreases by10.6% and the loss decreases by 38.4%.Then,the optimized electromagnet was simulated and analyzed,and the simulation results show that the optimized electromagnet meets the actual use requirements.3.The vibration parameters of the electromagnetic vibration feeder are optimized to improve the feeding performance of the electromagnetic vibration feeder and reduce vibration transmission.According to the optimization results,determine the structural parameters of the entire machine,establish a prototype model,and then conduct modal analysis and harmonic response analysis of the entire machine through finite element analysis software.The modal analysis results show that the seventh modal vibration mode is the same as the vibration mode required by the electromagnetic vibration feeder for feeding,and the natural frequency under this mode is 49 Hz,which is close to the operating frequency of the electromagnetic vibration feeder.The electromagnetic vibration feeder operates in a near resonant state.The harmonic response analysis results show that under the excitation of a 49 Hz load,the electromagnetic vibration feeder generates resonance in the vertical direction.At this time,the hopper amplitude is 0.5 mm,and the base amplitude is 0.1 mm.This not only ensures good feeding performance,but also reduces vibration transmission.In addition,the fatigue reliability analysis of the key component main vibration plate spring was conducted,and many fatigue analysis parameters such as stress distribution,fatigue life,damage,and safety factor of the main vibration plate spring were obtained.The weak parts of the plate spring were identified,providing theoretical guidance for the design and strengthening of the plate spring.4.The prototype is applied to the transportation of cracking liquid reagent bottle caps.The prototype exhibits stable feeding and high feeding efficiency,and the amplitude frequency characteristics of the prototype are consistent with theoretical calculations and simulation analysis.The research results of this article provide theoretical guidance for the design,manufacturing,and application of electromagnetic vibration feeders. |
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