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Piezo-driven jetting device

A technology of piezoelectric driving and spraying device, which is applied to devices and coatings that apply liquid to the surface. It can solve the problems of affecting the amplitude stability of the firing pin, the inability of the firing pin to vibrate regularly, and the poor consistency of dispensing, so as to improve the dispensing efficiency. Consistency, Guaranteed Dispensing Speed, and Improved Reliability

Active Publication Date: 2022-07-01
SHANDONG UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention is to solve the technical problems that the striker of the jet dispensing device driven by the piezoelectric ceramic actuator can not vibrate regularly, which affects the stability of the striker amplitude, affects the speed of dispensing, and has poor dispensing consistency. It can ensure the stability of the striker's amplitude and good consistency of dispensing. Piezoelectric drive injection device

Method used

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  • Piezo-driven jetting device
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  • Piezo-driven jetting device

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Embodiment Construction

[0027] Hereinafter, the present invention will be further described in detail with specific embodiments with reference to the accompanying drawings.

[0028] like Figure 1-6 As shown, the piezoelectric driven spray device includes a support frame 1, a shaft 2, a connecting rod 3, a first piezoelectric ceramic actuator 4, a second piezoelectric ceramic actuator 5, a first compression spring pin 6, a second Compression spring pin 7, first compression spring 8, second compression spring 9, displacement sensor bracket 10, displacement sensor 11, vibration sensing plate 12, rubber storage cylinder bracket 13, rubber storage cylinder 14, rubber guide tube 15, joint 16, Valve body 17, end cover 18, nozzle positioning nut 19, gasket 20, ceramic heating plate 21, lower linear bearing 22, O-shaped sealing ring 23, upper linear bearing 24, striker 25, flange 26, adjusting nut 27, and Spring 28.

[0029] The right end of the support frame 1 is provided with a fixing plate 32, and the f...

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PUM

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Abstract

The invention relates to a piezoelectric-driven spray device, which solves the problem that the firing pin of the existing piezoelectric ceramic actuator-driven spray-type glue dispensing device cannot vibrate regularly, affects the stability of the amplitude of the firing pin, affects the speed of glue dispensing, and ensures consistent glue dispensing The technical problem of poor performance includes a piezoelectric drive mechanism and a spray mechanism, and the spray mechanism is provided with a striker, and is characterized in that: the piezoelectric drive mechanism includes a support frame, a shaft, a connecting rod, a first piezoelectric ceramic actuator and a second pressure The electric ceramic actuator, the first piezoelectric ceramic actuator and the second piezoelectric ceramic actuator are connected side by side to the bottom of the support frame, and the shaft is fixedly connected to the support frame; the left end of the connecting rod is provided with a hinge hole, and the shaft through the hinge hole; the right end of the connecting rod is connected with the striker through a flexible hinge mechanism; the tops of the first piezoelectric ceramic actuator and the second piezoelectric ceramic actuator are connected with the left end of the connecting rod. The present invention is widely used in glue dispensers.

Description

technical field [0001] The invention relates to a spray-type glue dispensing device, in particular to a piezoelectric-driven spray device. Background technique [0002] In the field of microelectronics technology, dispensing machines are commonly used equipment in electronic product processing and packaging. With the increasing complexity and miniaturization of integrated circuits, semiconductor packaging requires smaller dimensions, more leads, denser interconnects, etc., and the requirements for dispensing technology are getting higher and higher. At present, the commonly used jet dispensing technology based on high-frequency components such as piezoelectric ceramics, which drives the glue liquid distribution by the striker, uses the high-frequency vibration striker to drive the glue liquid to be ejected from the nozzle at a high speed, with fast response speed and small glue droplet volume. , The advantages of high distribution accuracy. This technology precisely dispen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05C5/02B05C11/10
CPCB05C5/02B05C11/10
Inventor 路士州曹任水周凤岐李东琦郑海李琦吴晨阳高宇航
Owner SHANDONG UNIV