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A single piezoelectric ceramic drive hot melt glue dispensing valve

A piezoelectric ceramic-driven, hot-melt adhesive technology, which is used in devices and coatings that apply liquid to the surface, which can solve the problems of too many components, insufficient connection accuracy, and low dispensing accuracy of the glue valve.

Active Publication Date: 2020-10-20
维库(厦门)信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that existing dispensing valves have many internal components in the valve body, and the connection precision is not high enough, resulting in low dispensing precision of the dispensing valve.

Method used

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  • A single piezoelectric ceramic drive hot melt glue dispensing valve
  • A single piezoelectric ceramic drive hot melt glue dispensing valve
  • A single piezoelectric ceramic drive hot melt glue dispensing valve

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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] see Figure 1 to Figure 4 , the lower part of the valve body 1 is provided with two threaded holes, and the internal threaded holes are used to install the striker guide sleeve 8. When installing, first install the striker 12 and the striker spring 9 into the striker guide sleeve 8 from top to bottom, and then install the striker. 12. The striker guide sleeve 8 of the striker spring 9 is installed from bottom to top and locked on the valve body 1. The top of the striker is a flat surface in contact with the lever, and the bottom (at the tip) of the striker is a spherical surface, which can be connected with the integrated nozzle. The inner cavity forms a precise surface fit. The lowermost external threaded hole is used to install the cylindrical nut 7, and the outer surface of the integrated nozzle 14 is also threaded, which c...

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Abstract

The invention belongs to the technical field of fluid dispensing valves, and particularly discloses a dispensing valve with hot melt adhesive driven by a single piezoelectric ceramic. A nozzle of thedispensing valve can be detachable and replaced, and nozzles of different bore diameters can be replaced according to actual needs. A reset spring occupies small area, and only a few components are required to be installed in a valve body. Since an integral cutting molding manner is adopted, components inside are convenient to mount, so that the whole structure of the dispensing valve is more compact. A striker and a lever are separated, so that the striker does not move along with swing of the lever, thus avoiding that transverse displacement generates on the striker when the lever swings. Inthis way, the dispensing valve is good in guiding property and stable in movement, and glue sealing can be facilitated, thus prolonging the service life of the dispensing valve and ensuring the dispensing valve can carry out high-frequency and high-precision dispensing operation. A heat dissipation system is arranged outside the valve body, a bulky pump and a gas pipe are not required, so that the dispensing valve is simple and small yet high-efficient, thus facilitating cleaning and maintenance of the dispensing valve and protecting a piezoelectric ceramic and other components inside the valve body.

Description

technical field [0001] The invention relates to a fluid dispensing valve, in particular to a single piezoelectric ceramic driven hot-melt glue dispensing valve. [0002] technical background [0003] Fluid dispensing technology is one of the key technologies of electronic packaging. According to different packaging requirements, fluid dispensing technology can construct dispensing tracks in the form of points, lines, surfaces, etc. Jet dispensing valve is the main equipment for fluid dispensing . According to the different principles of fluid dispensing technology, it can be mainly divided into contact dispensing and non-contact dispensing, the latter can also be called jet dispensing. Contact dispensing first needs to control the movement of the dispensing needle in a certain way. After reaching the designated position, the glue is squeezed out and contacts the substrate. After the glue infiltrates the substrate, the needle is controlled to move horizontally while continuou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05C5/02B05C11/10
CPCB05C5/0225B05C11/1026
Inventor 林瑞滨
Owner 维库(厦门)信息技术有限公司
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