FLUID DISCHARGE DEVICE

• Main Authors: OKA HIROMITSU, IKUSHIMA NAOTOSHI
• Format: Patent
• Language: English; Japanese
• Published: 12.04.2018
• Subjects: APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; PERFORMING OPERATIONS; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a fluid discharge device which can adequately discharge a fluid which contains particles and a fluid which does not contain the particles.SOLUTION: A fluid discharge device includes a fluid chamber, a discharge hole for discharging a fluid, a plunger which moves to an opening of the discharge hole to the fluid chamber, and a delivery device 74 for delivering the fluid into the fluid chamber. The deliver device constantly delivers the fluid to the fluid chamber when the fluid is discharged from the discharge hole by abutting a tip end part of the plunger on the opening (a first discharge control execution part 160). On the other hand, the delivery device delivers the fluid with a timing the plunger moves when the fluid is discharged from the discharge hole without abutting the tip end part of the plunger on the opening (a second discharge control execution part 162). Thereby, the fluid which does not contain the particles is discharged by the first discharge control execution part, and the fluid which contains the particles is discharged by the second discharge control execution part. Thus, the fluid which contains particles and the fluid which does not contain the particles are discharged adequately.SELECTED DRAWING: Figure 3 【課題】粒子を含む流体と粒子を含まない流体とを適切に吐出可能な流体吐出装置を提供する。【解決手段】流体室と、流体を吐出するための吐出穴と、吐出穴の流体室への開口に向かって移動するプランジャと、流体室内に流体を送り出す送出装置７４とを備えた流体吐出装置において、プランジャの先端部が開口に当接することで、流体が吐出穴から吐出される際には、送出装置は、流体を流体室に常時送り出す（第１吐出制御実行部１６０）。一方、プランジャの先端部が開口に当接することなく、流体が吐出穴から吐出される際には、送出装置は、流体をプランジャの移動のタイミングに合わせて送り出す（第２吐出制御実行部１６２）。これにより、第１吐出制御実行部によって、粒子を含まない流体を吐出し、第２吐出制御実行部によって、粒子を含む流体を吐出することが可能となり、粒子を含む流体と粒子を含まない流体とを適切に吐出することが可能となる。【選択図】図３