Discharge apparatus and discharge method
AssigneeDainippon Screen Mfg. Co., Ltd.
InventorRyuichi HAYAMA
Life of this patent
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Abstract
A discharge apparatus 1 comprises a feeder part 41 which is provided on a flow path of a discharge material from a supply part 10 to a nozzle 50 and feeds the discharge material in the flow path at a predetermined flow rate from the supply part 10 toward the nozzle 50 and a plurality of pressurizers 31, 32 provided in parallel to each other on the flow path and each having a function of temporarily storing the discharge material in a storage space and a function of pressurizing the discharge material stored in the storage space and feeding the discharge material under pressure to the feeder part 41. The plurality of pressurizers 31, 32 operate complementarily manner, thereby a constant pressure is applied to the discharge material fed to the feeder part 41.
Claims12
A discharge apparatus, comprising:
- a nozzle which discharges a paste-like discharge material supplied from a supply part;
- a feeder part which is provided on a flow path of the discharge material from the supply part to the nozzle and feeds the discharge material in the flow path at a predetermined flow rate from the supply part side toward the nozzle side;
- a plurality of pressurizers provided in parallel to each other on the flow path between the supply part and the feeder part and each having a function of temporarily storing the discharge material supplied from the supply part in a storage space and a function of pressurizing the discharge material stored in the storage space and feeding the discharge material under pressure to the feeder part;
- and
- a controller which causes at least one of the pressurizers to pressurize the discharge material in the flow path communicating with the feeder part so that a predetermined positive pressure is applied to the discharge material in the flow path and causes the discharge material to be supplied from the supply part to at least one of the pressurizers not pressurizing the discharge material.
A method for discharging a paste-like discharge material from a nozzle, comprising:
- a first step of arranging a pressurizer and a feeder part in order along a flowing direction of the discharge material on a flow path of the discharge material from a supply part configured to supply the discharge material to the nozzle;
- a second step of feeding the discharge material supplied from the supply part under pressure to the feeder part by pressurizing the discharge material by the pressurizer;
- and
- a third step of feeding the discharge material fed under pressure from the pressurizer at a predetermined flow rate to the nozzle by the feeder part while performing the second step;
- wherein:
- in the first step, a plurality of the pressurizers each having a function of temporarily storing the discharge material supplied from the supply part in a storage space and a function of pressurizing the discharge material stored in the storage space and feeding the discharge material under pressure to the feeder part are disposed in the flow path in a state connected in parallel to each other;
- and
- in the second step, while at least one of the pressurizers applies a predetermined positive pressure to the discharge material in the flow path communicating with the feeder part by pressurizing the discharge material, the discharge material is supplied from the supply part to at least one of the pressurizers not pressurizing the discharge material.
Dependencies are inferred from the claim text.