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Piezoelectric jet valve

A piezoelectric spraying and piezoelectric technology, applied in coatings, devices for coating liquids on surfaces, etc., can solve the problems of high production and maintenance costs, short service life, unqualified dispensing quality, etc., to reduce production and cost. The effect of maintenance cost, improving service life and ensuring production continuity

Pending Publication Date: 2019-07-05
XIAMEN WEISHENGBANG NETWORK SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the use of the existing pan-sealing plug, glue is easy to enter the elastic member (spring or shrapnel), so that the elastic part is stuck and cannot function normally, and then the pan-sealing plug loses its sealing effect, and finally may cause glue to enter the valve body , so that the piezoelectric injection valve cannot work normally, and the service life is short
On the one hand, this leads to unqualified dispensing quality and an increase in defective rate; on the other hand, it leads to production interruption and high production and maintenance costs

Method used

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  • Piezoelectric jet valve
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Examples

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Embodiment Construction

[0025] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0026] Such as Figures 1 to 6 As shown, a piezoelectric injection valve may include a valve body 1 , a valve seat 2 and a striker 3 , and the valve body 1 and the valve seat 2 are detachably fixed together, for example, fastened by screws. The valve body 1 is provided with a piezoelectric driving mechanism 11 and a control circuit board 12 , the control circuit board 12 is used to control the action of the piezoelectric driving mechanism 11 and is electrically connected to an electrical connector 13 provided on the valve body 1 . The structure of the piezoelectric drive mechanism will be described below. The valve seat 2 includes a valve seat body 21 and a nozzle 22, the valve seat body 21 has a liquid storage cavity 23 above the nozzle 22, and the striker 3 is installed on the valve body through the striker mounting seat 4 1, its upper end is dri...

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Abstract

The invention relates to a piezoelectric jet valve comprising a valve body, a valve seat and a firing pin. The valve body and the valve seat are detachably fixed together. A piezoelectric drive mechanism is arranged in the valve body. The valve seat comprises a valve seat body and a spray nozzle. A liquid storage cavity located above the spray nozzle is arranged in the valve seat body. The firingpin is installed in the valve body through the firing pin installation seat. The upper end of the firing pin is connected with the piezoelectric drive mechanism. The lower end of the firing pin is matched with the spray nozzle. The opening, facing the liquid storage cavity, of the firing pin installation seat is provided with a spring seal. The spring seal comprises an annular body and an elasticpiece. The spring seal is characterized by further comprising a seal ring. The seal ring seals the elastic piece into the annular body. By changing the structure of the spring seal, the service life of the piezoelectric jet valve can be greatly prolonged, production continuity is guaranteed, and production and maintenance cost is lowered.

Description

technical field [0001] The invention relates to the field of dispensing equipment, in particular to a piezoelectric injection valve used for dispensing. Background technique [0002] Piezoelectric injection valve utilizes the inverse piezoelectric effect of piezoelectric material, high injection frequency, simple equipment structure, and very small glue dots can be obtained by injection; on the other hand, the control precision of piezoelectric structure is high, which can improve injection dispensing quality. The pan-sealing plug is an important part of the piezoelectric injection valve, which is used to place the glue into the valve body. During the use of the existing pan-sealing plug, glue is easy to enter the elastic member (spring or shrapnel), so that the elastic part is stuck and cannot function normally, and then the pan-sealing plug loses its sealing effect, and finally may cause glue to enter the valve body , so that the piezoelectric injection valve cannot work...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05C5/02B05C5/00
CPCB05C5/02B05C5/001
Inventor 黄清耀马奕
Owner XIAMEN WEISHENGBANG NETWORK SCI & TECH CO LTD
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