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Liquid discharge apparatus and method

一种液体、液滴的技术，应用在液体喷出装置领域，能够解决影响喷嘴的墨水喷出性能、墨水附着等问题

Inactive Publication Date: 2017-08-01
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, in the technique described in Patent Document 1, since a heat generating unit is provided in the nozzle portion from which ink is ejected, there is a possibility that dried ink adheres to the edge of the nozzle and accumulates.
If dried ink builds up on the edge of the nozzle, it may affect the nozzle's ink ejection performance

Method used

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  • Liquid discharge apparatus and method
  • Liquid discharge apparatus and method
  • Liquid discharge apparatus and method

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no. 1 Embodiment approach

[0033] figure 1 It is an explanatory diagram showing a schematic configuration of the liquid ejection device 100 according to the first embodiment of the present invention. The liquid ejection device 100 includes a head 110 , a droplet generating unit 120 and a direction changing unit 130 . In addition, the ejection device of this embodiment includes a recovery unit 140 , an energy supply unit 150 , a control unit 160 , a pressure pump 170 , a viscosity adjustment container 180 , a solvent supply container 182 , and an object moving mechanism 190 .

[0034] The head 110 is provided with a nozzle 114 that ejects a liquid columnar liquid. Specifically, the head 110 includes a syringe 112 serving as a liquid container storing liquid, and a nozzle 114 communicating with the inside of the syringe 112 and ejecting the liquid in the syringe 112 to the outside. In this embodiment, the syringe 112 is cylindrical and formed of stainless steel. In addition, the nozzle 114 is formed as...

no. 2 Embodiment approach

[0051] image 3 It is an explanatory diagram showing a schematic configuration of a liquid ejection device 100 b according to a second embodiment of the present invention. The configuration of the liquid ejection device 100b of the present embodiment is the same as that of the liquid ejection device 100 of the first embodiment. This embodiment is different from the first embodiment in that droplets of two sizes are generated by the droplet generating unit 120 . In this specification, the so-called droplet size refers to the volume of the droplet. In addition, the size of the liquid droplet can also be grasped as the weight of the liquid droplet.

[0052] The droplet generating unit 120 of the present embodiment generates droplets of a first size and droplets of a second size larger than the first size from the columnar liquid. The control unit 160 controls the droplet generating unit 120 so that the irradiation interval of the laser beam irradiating the liquid column is dif...

no. 3 Embodiment approach

[0056] Figure 4 It is an explanatory diagram showing a schematic configuration of a liquid ejection device 100c according to a third embodiment of the present invention. The configuration of the liquid ejection device 100c of the present embodiment is the same as that of the liquid ejection device 100 of the first embodiment. In the second embodiment, liquid droplets having a large size are recovered in the third embodiment, while liquid droplets having a small size are recovered.

[0057] The droplet generating unit 120 of the present embodiment generates droplets of the first size and droplets of the second size larger than the first size from the columnar liquid, as in the second embodiment. In addition, the control unit 160 of this embodiment forms the droplet that does not hit the object 300 in the second size and the droplet that hits the object 300 in the first size, contrary to the second embodiment. In addition, the control unit 160 controls the direction changing ...

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Abstract

The invention provides a liquid discharge apparauts and method, which can inhibit accummultion of ink around a nozzle, and can stably eject ink. The liquid discharge apparatus includes: a head unit that has nozzles that discharge a column-shaped liquid; a liquid droplet generating unit that applies cyclically changing energy to positions of the column-shaped liquids discharged from the nozzles, which are separated from the nozzles, and that generates liquid droplets; and a direction changing unit that changes a flying direction of at least some liquid droplets of the generated liquid droplets.

Description

technical field [0001] The present invention relates to a liquid ejection device and a liquid ejection method. Background technique [0002] Currently, a liquid ejection device that ejects liquid to produce a printed matter or a three-dimensional object is in use. For example, in the inkjet printer described in Patent Document 1, when the liquid columnar ink is ejected from the nozzle, the ink is given a viscosity change by the heating unit (laser) provided in the nozzle part, and the liquid column is pulsated to form ink. drop. [0003] 【Prior technical literature】 [0004] 【Patent Literature】 [0005] Patent Document 1: Japanese Patent Application Laid-Open No. 6-64161 [0006] However, in the technique described in Patent Document 1, since a heat generating unit is provided in a nozzle portion from which ink is ejected, there is a possibility that dried ink adheres to and accumulates on the edge of the nozzle. If dried ink builds up on the edge of the nozzle, it may ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/14
CPCB41J2/14B41J2/03B41J2/175B41J2002/033B41J2/105B41J2/02B41J2/07B41J2/1433
Inventor 须贝圭吾
Owner SEIKO EPSON CORP
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