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Apparatus for ejecting liquid droplet

A discharge device and droplet technology, which is applied in liquid displacement machines, pumps with flexible working elements, machines/engines, etc., can solve problems such as the formation of air bubbles, and achieve the effect of increasing the degree of freedom and increasing the degree of freedom

Active Publication Date: 2013-01-02
CLUSTER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, in the state of the liquid surface LS3', since the opening 43' is filled with liquid before the upper end of the liquid surface reaches the opening 43', the gas A remains in the second flow path 60' and forms a Air bubbles, resulting in the same problem as the formation of air bubbles at the above-mentioned outer corner P1' and inlet side acute corner P2'

Method used

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  • Apparatus for ejecting liquid droplet
  • Apparatus for ejecting liquid droplet
  • Apparatus for ejecting liquid droplet

Examples

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Embodiment Construction

[0051] First, while referring to Figure 1 to Figure 7 The first embodiment of the present invention will be described. In addition, up, down, left, and right in this specification are for the convenience of description, and are not restricted by the absolute direction of gravity.

[0052] Such as figure 1 3 , the liquid drop discharge device 1 according to the present invention has a liquid discharge head 2 that discharges liquid supplied from a cartridge (not shown) in the form of liquid droplets from an opening 43 at the lower end of a nozzle 41 . The liquid discharge head 2 is configured by respectively fastening the piezoelectric element 10 as a pressure generating element, the vibrating plate 30 and the nozzle plate 40 to the bracket 20 , and further fixing unillustrated contacts, an upper cover, and cables. Here, the upper cover, the bracket 20 , the vibrating plate 30 and the nozzle plate 40 , which are not shown, are injection-molded from a resin material or the li...

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Abstract

A droplet discharging apparatus has a flow path connected to a liquid supply path. A nozzle is located downstream of the flow path and discharges liquid drops. A pressure generation element generates pressure for discharging the liquid from the nozzle. The flow path is bent and has a first flow path connected to the liquid supply path and a second flow path connected to the downstream side of the first flow path and causing the liquid to flow in the different direction from the first flow path. That portion of the bend which is from an outer corner of the bend to an outer wall portion of the second flow path is formed in a smooth shape. At the connected sections, the width of the second flow path normal to the direction of flow of the first flow path is set smaller than the width of the first flow path.

Description

technical field [0001] The present invention relates to a liquid drop discharge device, and more specifically, to a liquid drop discharge device comprising: a flow path connected to a liquid supply path; and an opening located downstream of the flow path for discharging liquid droplets and a pressure generating element for generating a liquid discharge pressure in the flow path to discharge the liquid from the opening. Background technique [0002] A device described in the following Patent Document 1 is known as the above-mentioned droplet discharge device. [0003] Patent Document 1: Japanese Patent Application Laid-Open No. 8-58089 [0004] In this document, in the structure in which the ink is supplied from the communication path 38 to the pressure chamber 5, the ink supply orifice 4 is arranged so as not to face the pressure chamber, so that air bubbles can be easily discharged. However, for example in the literature Figure 6 In the above, the pressure chamber 5 and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B43/04
CPCF04B43/04
Inventor 安达良纪小泉贤史楠本晃子
Owner CLUSTER TECH