Impact-free type piezoelectric injection dispensing valve

A technology of piezoelectric spraying and dispensing valves, which is applied in coatings and devices for coating liquids on surfaces, can solve problems such as high production costs, poor consistency, and low precision, and achieve improved service life, avoiding collision wear, Effects that improve precision and consistency

Active Publication Date: 2020-09-08
东莞市集韵自动化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a non-impact piezoelectric jet dispensing valve for the deficiencies of the prior art, which effectively solves the problems of low precision, poor consistency and high production cost of the impact piezoelectric jet valve. Improved production efficiency

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  • Impact-free type piezoelectric injection dispensing valve
  • Impact-free type piezoelectric injection dispensing valve

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Embodiment Construction

[0026] Certain terms are used, for example, in the description and claims to refer to particular components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. As mentioned throughout the specification and claims, "comprising" is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0027] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", horizontal" etc. are based on th...

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Abstract

The invention belongs to the technical field of dispensing valves, and particularly relates to an impact-free type piezoelectric injection dispensing valve. The piezoelectric injection dispensing valve comprises a valve body, a valve seat and a push rod; the valve body is fixedly connected with the valve seat; a nozzle is installed at the bottom of the valve seat; a first liquid storage cavity isarranged inside the valve seat; a piezoelectric driving mechanism is arranged at the center of the valve body; the upper end of the push rod abuts against the piezoelectric driving mechanism. and thelower end thereof penetrates through the first liquid storage cavity and is in clearance fit with a second liquid storage cavity which is arranged inside the nozzle; a first flow channel is arranged inside the push rod; and the first liquid storage cavity, the first flow channel and the second liquid storage cavity communicate with each other. Compared with the prior art, the piezoelectric injection dispensing valve realizes dispensing operation in an impact-free manner, a firing pin is replaced by the push rod so collision and impact of the nozzle and the firing pin are avoided, the precisionand efficiency of dispensing are improved, maintenance cost is greatly saved, service life of the device is improved, injection of glue solution containing solid granules is realized, the phenomenonof partial heating of the device is reduced, and the phenomenon of leakage of the glue solution is prevented.

Description

technical field [0001] The invention belongs to the technical field of piezoelectric injection valves, in particular to a non-impact piezoelectric injection dispensing valve. Background technique [0002] Piezoelectric injection valves use the characteristics of piezoelectric materials to generate mechanical force through voltage to control the opening and closing of the valve. Because the space for opening and closing the valve is very small, the piezoelectric action frequency is extremely high, and it can inject a very small amount of water at high speed. Therefore, piezoelectric injection valves are widely used in the field of high-precision, high-reliability dispensing. [0003] At present, the piezoelectric jet dispensing valve in the industry is generally equipped with a striker, which generates high-frequency vibration under the action of the piezoelectric actuator and amplifier, and then uses the striker to hit the nozzle to realize the injection of glue. However, i...

Claims

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Application Information

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IPC IPC(8): B05C5/02
CPCB05C5/0225
Inventor 郭立才史玉雪张煌圣
Owner 东莞市集韵自动化科技有限公司
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