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How to reduce the impact of webbing noise on workers' production

People-oriented is the purpose and standard of webbing sling noise reduction. To protect people's health from the harmful effects of noise, the key to solving this problem lies in determining the maximum allowable value of noise with a scientific basis. That is to say, under the influence of noise every day for many years, it will not make people sick and hinder normal labor activities. Because in most cases, economic and technical limitations, it is impossible to reduce the noise to a very small sound level. Therefore, the standard of noise reduction should be people-oriented, with the goal of not harming people's health and normal labor activities, and establishing a people-oriented concept of noise reduction.The systematic principle of noise reduction.Preventing noise and sound vibration is a complicated problem for ensuring the normal sound conditions in the workshop. This requires the systematic implementation of a set of comprehensive measures to be resolved.Organize and provide this requires a reasonable layout at the beginning of the design of the plant; reduce the vibration of the machinery and equipment at the sound source, and install sound-absorbing equipment in the workshop and use personal noise-proofing products to ensure that this systematic project .Reasonable layout of the plant area.

 

Correctly arrange the workshops with noisy equipment in the plant area, especially the correct arrangement of noisy sections in the workshop, to ensure that most people who are not directly related to the noisy equipment maintain their normal working conditions. When planning, noisy workshops should be concentrated in one or two places and arranged at the downwind of the enterprise area boundary. Reasonably arrange the floor plan and adopt sound absorption, sound insulation, and noise reduction methods in the workshop. Use an economical and effective enclosure structure in the design, and make porous sound-absorbing finishes on the ceiling and wall of the workshop, as well as noise reduction and sound insulation.Vibration reduction and other devices to reduce noise in the workshop. Such as the use of aluminum sound-absorbing panels for ceilings and walls and so on.Innovative structure of webbing machinery and equipment noise reduction approach, first of all should be reduced from the sound source. To manufacture new low-noise equipment, adopt the structure of new machinery and equipment at the beginning of the equipment design or change the structure of the noisy combined parts to reduce the dynamic load, eliminate the impact of machinery and improve the manufacturing accuracy.

 

Generally, changing the characteristics, rigidity and transmission form of the motion can achieve good results. 5. Pay attention to the webbing technology to reduce the noise source noise. Industry and transportation can choose low-noise production equipment and improve production technology, or change the movement mode of the noise source, such as processing the main sound-producing parts of heald frames and belt knots. , Replace the component materials, such as using nylon shuttles instead of wooden shuttles, and nylon gears instead of cast steel gears to reduce noise. In addition, inlay damping layer outside some parts, or reduce the running speed of the weaving machine, and install a buffer device to obtain a further noise reduction effect.Hierarchical management and hierarchical protection.In the control outdoor, design room, workshop or the place where employees work for a long time, the noise intensity should be low; the warehouse or few people go to the workshop or open place, and the noise is slightly higher. In short, there should be certain differences in the treatment of noise at different times, locations, different properties and different durations. For noise protection of the receiver or organ, when measures cannot be taken on the sound source and transmission path, or the acoustic measures taken still cannot achieve the expected effect, it is necessary to take protective measures for the receiver or organ.

 

For example, workers exposed to long-term occupational noise can wear ear protectors such as earplugs, earmuffs or helmets. There are many people in the webbing workshop, so it is reasonable to take personal protective measures.The scientific principle of noise reduction.As a technology closely related to theory and practice, noise reduction needs the support of many disciplines. In the implementation of noise reduction measures, attention should be paid to absorbing and applying various scientific theories. The use of outer covers and enclosures to insulate the entire machine and noise components is the basic method to reduce noise. Establish sound insulation barriers, and use other sound insulation materials and sound insulation structures to block the spread of noise. Use sound-absorbing materials and sound-absorbing structures to convert the sound energy of the noise in the propagation into heat energy, etc. In the textile workshop, the commonly used sound-absorbing materials are mainly porous sound-absorbing materials, such as glass wool, mineral wool, expanded perlite, and perforated sound-absorbing panels. The sound absorption performance of the material is determined by its roughness, flexibility, porosity and other factors. In addition, the lawns and trees around the building are also good sound-absorbing materials. The covering layer made of vibration damping materials with high internal friction is one of the effective methods to reduce structural vibration, that is, to reduce radiation noise. In the textile workshop, this noise reduction method is first applied to the machine with thin-walled protective body, fully sealing all the mechanisms, and the effect is obvious.