Abstract
Based on MJ3310 woodworking band saw machine as the research object, under the no-load and load of Vib system vibration signal acquisition, processing and analysis software of band saw blade transverse vibration test and the signal acquisition and analysis of the collected signals obtained: to determine the transverse vibration displacement 5.66μm ~ 7.86μm and the main vibration frequency between 624 Hz ~ 792 Hz, then saw blade crack at least 3 mm, need timely saw blade, cutting high hardness of wood band saw blade transverse vibration displacement and frequency will increase sharply. Can be generated according to the band saw blade crack before and after the changing rule of the horizontal vibration displacement and frequency of transverse vibration and scope, judgment and replacement time of saw blade saw blade defect types, which can fully rational utilization of saw blade work effectively.
Highlights
In order to eliminate or reduce safety accidents, improve labor productivity, improve the quality of band saw machine for processing, it is necessary for band saw blade falls from the teeth of the reasons and rules, forecast and prevention measures, work safety evaluation of multiple system research
The study of fallen tooth formation has the most overall and basic, it is the study of band saw blade is foundation of work safety, and to build the core content of safety theory of band saw machine [1]-[3]
Its drop tooth saw blade transverse vibration displacement between 5.66μm~7.86μm, through the observation curve, shown in Fig. 4 will find in the band sawing machine high speed, drop tooth vibration main frequency band saw blade, almost no change in speed, both are the obvious contrast, produce tooth defect of band saw blade vibration main frequency will be lower than the whole band saw blade of about 50 Hz
Summary
In order to eliminate or reduce safety accidents, improve labor productivity, improve the quality of band saw machine for processing, it is necessary for band saw blade falls from the teeth of the reasons and rules, forecast and prevention measures, work safety evaluation of multiple system research. This paper intends to band saw blade tooth loss were studied and summarized its cause, and changes to the rules, and deeply understanding out the intrinsic relationship between the teeth of each factor, and blade breakage mechanism, for improving the quality of sawn timber processing, the protection of the ecological environment, and prevent safety accident occurrence, reduce safety accident frequency and damage, ensure the safety of the lives and property of the people, have a very important practical significance [4]-[8]. Instruments used in the experiment connection diagram is shown in Fig. 1. 2.1.2 Equipment
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