Abstract: A coating nozzle is provided. The coating nozzle includes: a chamber portion, communicated with a coating material supply portion; a supply surface, disposed on a side of the chamber portion; a discharge surface, disposed on other side of the chamber portion opposite to the supply surface and used to discharge the coating material; supply holes, annularly arranged on the supply surface with a first position as a center; discharge holes, arranged into at least one straight line on the discharge surface; and communication hole paths, respectively and correspondingly communicated from the supply holes on the supply surface to the discharge holes on the discharge surface. The communicating holes respectively have different lengths. The communication hole paths include a large diameter portion and a small diameter portion whose diameter is shorter that of the large diameter portion. The small diameter portions respectively have different diameters or lengths.

Abstract: A discharge device is equipped with a housing having a flow passage for enabling a coating material to flow and a plurality of discharge ports arrayed on a distal end surface of the housing in a width direction for discharging the coating material toward an object. The plurality of discharge ports are each formed in a non-perfect circular shape having a peripheral length being longer than an imaginary perfect circular shape which has the same area as the non-perfect circular shape. Further, a plurality of discharge flow passages are perpendicular to the discharge ports when viewed in a longitudinal sectional view, are the same shape as the discharge ports, and extend linearly.

Abstract: The present invention has an object to provide a coating vice which can reduce variation in the amount of discharge in the discharge nozzle group. A coating device 1 includes: a first supply unit 40 and a second supply unit 50 which can supply a viscous material N to the discharge nozzle group 10; and a control portion 100 which stops, at the timing at which a first time zone is switched to a second time zone, the supply in the first supply unit 40, which makes the second supply unit 50 start the supply of the viscous material N to the discharge nozzle group 10 at a second flow rate and which makes, in a second time zone, the first supply unit 40 start the preparation of the viscous material necessary in any one of a third time zone and the subsequent time zones.

Abstract: An object of the present invention is to provide a coating nozzle which has a plurality of discharge holes and which can reduce variations in the discharge of a coating material from the discharge holes. A coating nozzle (10) includes: a plurality of supply holes (40a to 40t) which are formed in a supply surface (35) so as to be aligned on a circle (D) with a first position (45) in the center; a plurality of discharge holes (50a to 50t) which are formed in a discharge surface (20) so as to be aligned on a straight line (L); and a plurality of communication hole paths (60a to 60t) which make the supply holes (40a to 40t) linearly communicate with the discharge holes (50a to 50t), respectively and in which the communication distances thereof are substantially equal to each other.

Abstract: A discharge device is equipped with a housing having a flow passage for enabling a coating material to flow and a plurality of discharge ports arrayed on a distal end surface of the housing in a width direction for discharging the coating material toward an object. The plurality of discharge ports are each formed in a non-perfect circular shape having a peripheral length being longer than an imaginary perfect circular shape which has the same area as the non-perfect circular shape. Further, a plurality of discharge flow passages are perpendicular to the discharge ports when viewed in a longitudinal sectional view, are the same shape as the discharge ports, and extend linearly.

Abstract: The present invention has an object to provide a coating vice which can reduce variation in the amount of discharge in the discharge nozzle group. A coating device 1 includes: a first supply unit 40 and a second supply unit 50 which can supply a viscous material N to the discharge nozzle group 10; and a control portion 100 which stops, at the timing at which a first time zone is switched to a second time zone, the supply in the first supply unit 40, which makes the second supply unit 50 start the supply of the viscous material N to the discharge nozzle group 10 at a second flow rate and which makes, in a second time zone, the first supply unit 40 start the preparation of the viscous material necessary in any one of a third time zone and the subsequent time zones.

Abstract: An object of the present invention is to provide a coating nozzle which has a plurality of discharge holes and which can reduce variations in the discharge of a coating material from the discharge holes. A coating nozzle (10) includes: a plurality of supply holes (40a to 40t) which are formed in a supply surface (35) so as to be aligned on a circle (D) with a first position (45) in the center; a plurality of discharge holes (50a to 50t) which are formed in a discharge surface (20) so as to be aligned on a straight line (L); and a plurality of communication hole paths (60a to 60t) which make the supply holes (40a to 40t) linearly communicate with the discharge holes (50a to 50t), respectively and in which the communication distances thereof are substantially equal to each other.

Abstract: A coating apparatus has a rotary atomizing head that discharges paint to a work, and an air injecting unit that injects annular shaping air towards an outer peripheral edge portion of the rotary atomizing head. The air injecting unit has first air injecting ports and second air injecting ports. First air of relatively high wind speed is injected from the first air injecting ports and second air of relatively low wind speed is injected from the second air injecting ports.

Abstract: A coating apparatus has a rotary atomizing head that discharges paint to a work, and an air injecting unit that injects annular shaping air towards an outer peripheral edge portion of the rotary atomizing head. The air injecting unit has first air injecting ports and second air injecting ports. First air of relatively high wind speed is injected from the first air injecting ports and second air of relatively low wind speed is injected from the second air injecting ports.