DROPLET JETTING APPLICATOR AND METHOD FOR MANUFACTURING COATED BODY

Abstract

A droplet jetting applicator includes a coating unit jetting and coating droplets to a to-be-coated object; a storage space storing the to-be-coated object coated with the droplets; an exhaust section exhausting gas in the storage space; an adjustment unit adjusting an outlet flow of the gas exhausted by the exhaust section from the storage space; and a control section controlling the adjustment unit so that the outlet flow is changed in a stepwise manner.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a top view illustrating a schematic structure of a droplet jetting applicator according to Embodiment 1 of the present invention.

FIG. 2 is a perspective view illustrating a schematic structure of a coating unit provided in the droplet jetting applicator shown in FIG. 1.

FIG. 3 is a perspective view illustrating a schematic structure of a drying unit provided in the droplet jetting applicator shown in FIG. 1.

FIG. 4 is a schematic view illustrating a schematic structure of the drying unit shown in FIG. 3.

FIG. 5 is a diagram for explaining a relation between a vacuuming time and a vacuum pressure.

FIG. 6 is a flowchart illustrating the flow of a droplet coating processing of the droplet jetting applicator shown in FIG. 1.

FIG. 7 is a schematic view illustrating the structure of a drying unit provided in a droplet jetting applicator according to Embodiment 2 of the present invention.

Claims

1. A droplet jetting applicator, comprising: a coating unit jetting and coating droplets to a to-be-coated object;a storage space storing the to-be-coated object coated with the droplets;an exhaust section exhausting gas in the storage space;an adjustment unit adjusting an outlet flow of the gas exhausted by the exhaust section from the storage space; anda control section controlling the adjustment unit so that the outlet flow is changed in a stepwise manner.

2. The droplet jetting applicator according to claim 1, wherein: the control section controls the adjustment unit so that the outlet flow is made smaller than the maximum outlet flow and, when a vacuum pressure in the storage space reaches a predetermined vacuum pressure, the outlet flow is made to be the maximum outlet flow.

3. The droplet jetting applicator according to claim 1, wherein: the control section controls the adjustment unit so that the outlet flow is repeatedly changed and, when a vacuum pressure in the storage space reaches a predetermined vacuum pressure, the outlet flow is made to be the maximum outlet flow.

4. The droplet jetting applicator according to claim 1, wherein: the storage space has an opening section provided in a surface consisting of a side surface closer to a bottom surface than the surface of the stored to-be-coated object and the bottom surface;the exhaust section exhausts gas in the storage space through the opening section.

5. The droplet jetting applicator according to claim 2, wherein: the storage space has an opening section provided in a surface consisting of a side surface closer to a bottom surface than the surface of the stored to-be-coated object and the bottom surface;the exhaust section exhausts gas in the storage space through the opening section.

6. The droplet jetting applicator according to claim 3, wherein: the storage space has an opening section provided in a surface consisting of a side surface closer to a bottom surface than the surface of the stored to-be-coated object and the bottom surface;the exhaust section exhausts gas in the storage space through the opening section.

7. A droplet jetting applicator, comprising: a coating unit jetting and coating droplets to a to-be-coated object;a storage space that includes a dispersion plate provided to have a distance from a storage position at which the to-be-coated object coated with the droplets is stored and has a plurality of penetration holes and that includes a blocking plate provided between the storage position and the dispersion plate so as to be able to have a contact with or be away from the storage position, the storage space stores the to-be-coated object coated with the droplets at the storage position; andan exhaust section exhausting gas in the storage space,wherein:the storage space has an opening section provided at a surface consisting of a side surface closer to a top surface than the surface of the dispersion plate and the top surface, andthe exhaust section exhausts gas in the storage space through the opening section.

8. A method for manufacturing a coated body, comprising: jetting and coating droplets to a to-be-coated object;storing the to-be-coated object coated with the droplets in a storage space;exhausting gas in the storage space; andchanging an outlet flow of the gas exhausted from the storage space in a stepwise manner.

9. The method for manufacturing a coated body according to claim 8, wherein: the outlet flow is made to be smaller than the maximum outlet flow and, when a vacuum pressure in the storage space reaches a predetermined vacuum pressure, the outlet flow is made to be the maximum outlet flow, thereby changing the outlet flow in a stepwise manner.

10. The method for manufacturing a coated body according to claim 8, wherein: the outlet flow is repeatedly changed and, when a vacuum pressure in the storage space reaches a predetermined vacuum pressure, the outlet flow is made to be the maximum outlet flow, thereby changing the outlet flow in a stepwise manner.

11. The method for manufacturing a coated body according to claim 8, wherein: the gas in the storage space is exhausted through the opening section provided in a surface consisting of a side surface closer to a bottom surface than the surface of the to-be-coated object stored in the storage space and the bottom surface.

12. The method for manufacturing a coated body according to claim 9, wherein: the gas in the storage space is exhausted through the opening section provided in a surface consisting of a side surface closer to a bottom surface than the surface of the to-be-coated object stored in the storage space and the bottom surface.

13. The method for manufacturing a coated body according to claim 10, wherein: the gas in the storage space is exhausted through the opening section provided in a surface consisting of a side surface closer to a bottom surface than the surface of the to-be-coated object stored in the storage space and the bottom surface.

14. A method for manufacturing a coated body, comprising: jetting and coating droplets to a to-be-coated object;storing, in a storage space that includes a dispersion plate provided to have a distance from a storage position at which the to-be-coated object coated with the droplets is stored and has a plurality of penetration holes and that includes a blocking plate provided between the storage position and the dispersion plate so as to be able to have a contact with or be away from the storage position, the to-be-coated object coated with the droplets at the storage position so that the stored to-be-coated object is close to the blocking plate; andexhausting gas in the storage space through an opening section provided at a surface consisting of a side surface closer to a top surface than the surface of the dispersion plate and the top surface.