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Standing wave type ultrasonic vibration precision feeding device

A technology of ultrasonic vibration and feeding device, which is applied in vibrating conveyors, transportation and packaging, conveyors, etc., can solve the problems of travelling wave attenuation restrictions, uneven distribution, etc., and achieve diversified structures and uniform conveying speeds , easy to design effects

Inactive Publication Date: 2006-11-15
LIAONING UNIVERSITY OF TECHNOLOGY
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the problems that the conveying body of the existing traveling wave type ultrasonic powder conveying device is limited by the requirements of traveling wave attenuation, and the conveying speed of the material is unevenly distributed on the conveying length, etc., to provide a conveying body Standing wave type ultrasonic vibration precision feeding device with consistent amplitude of each particle, unlimited conveying body material and length, and uniform material conveying speed

Method used

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  • Standing wave type ultrasonic vibration precision feeding device
  • Standing wave type ultrasonic vibration precision feeding device
  • Standing wave type ultrasonic vibration precision feeding device

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Experimental program
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Embodiment 1

[0026] Such as figure 1 and figure 2 As shown, the present invention adopts the Langevin piezoelectric vibrator as the exciter, and the Langevin piezoelectric vibrator is a commonly used component in the field of ultrasonic vibration technology, and it is composed of a piezoelectric ceramic ring 6 and a metal elastic body 7; This embodiment adopts a Langevin piezoelectric vibrator, and there are two piezoelectric ceramic rings 6 on the Langevin piezoelectric vibrator, and bolts 4, nuts 2 and elastic washers 3 are used to connect the piezoelectric ceramic ring 6 and the metal 7 are fixed together; the two piezoelectric ceramic rings 6 are connected to the driving circuit through the copper sheet 5, and the voltage frequency of the driving circuit is 20kHz~100kHz, which is an existing common driving circuit; the Langevin piezoelectric vibrator is passed through the copper The piece 5 is fixed on the base 1, and the copper piece 5 is installed between two piezoelectric ceramic...

Embodiment 2

[0028] Such as image 3 As shown, its structure is as embodiment 1, and the difference is that the cross-sectional shape of the material conveying body 10 is a circular tube shape, that is, the material conveying body 10 is a tubular body, so as to transport materials in a closed state; the material conveying body 10 It is also possible to use tubes with cross-sections of other shapes, such as rectangular or elliptical, etc.; in this embodiment, the number of piezoelectric ceramic rings 6 of the Langevin piezoelectric vibrator is four, compared with two piezoelectric ceramic rings 6 provides more power. The piezoelectric ceramic ring 6 is fixed between two metal elastic bodies 7 with bolts 4, nuts 2 and elastic washers 3, and is located on both sides of the copper sheet 5. The vibration mode of the vibrator is the same as that of The vibration mode of the vibrator in Example 1 is the same, which is the first-order longitudinal stretching vibration of a bar with free ends.

Embodiment 3

[0030] As shown in Figure 4, its structure is the same as in Embodiment 1. The difference is that the Langevin piezoelectric vibrators are arranged in parallel along the conveying direction three times, and two, four or more can also be arranged in actual use. Multiple, determined according to the distance of material conveying.

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Abstract

A standing wave type ultrasonic vibration precision feeding device, which solves the problems that the conveying body of the existing traveling wave type ultrasonic powder conveying device is limited by the requirement of traveling wave attenuation, and the conveying speed of the material is unevenly distributed on the conveying length; the present invention The Langevin piezoelectric vibrator is used as the excitation body, and the Langevin piezoelectric vibrator is fixed on the base. The special feature is that the Langevin piezoelectric vibrator is equipped with a material conveying body, and the material conveying body is arranged obliquely. , using the Langevin piezoelectric vibrator to make the material conveying body do standing wave micron-scale ultrasonic vibration, the material slides down in the material conveying body of ultrasonic vibration by virtue of the component force of gravity, so as to achieve the purpose of micro, precise conveying or feeding The advantage is that the particle on the standing wave type ultrasonic vibration conveying body only does reciprocating linear motion, and there is no problem of traveling wave attenuation. Therefore, the material and length of the conveying body are not limited, and the conveying speed is uniform throughout the entire conveying length Consistent, improving the precision of conveying or feeding.

Description

technical field [0001] The invention belongs to a material conveying device, in particular to a standing wave type ultrasonic vibration precision feeding device. Background technique [0002] With the development of science and technology and the improvement of the automation of industrial equipment, the precision feeding or conveying technology of small or micro powder materials has attracted more and more attention. Although there are many kinds of traditional powder material conveying devices, the precision of conveying materials is very low, and the feeding volume is large, so it is difficult to achieve the technical requirements of high precision and micro-feeding. In recent years, with the development of ultrasonic motor technology, people continue to expand the application field of piezoelectric actuators, research and apply piezoelectric actuators in powder transportation, and replace traveling wave ultrasonic motor movers with powder Materials are transported in th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65G27/16
Inventor 何勍王宏祥
Owner LIAONING UNIVERSITY OF TECHNOLOGY
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