Embodiments simulate electrostatic painting on a real-world object. An embodiment begins by receiving an indication of paint deposition rate and an indication of maximum paint accumulation for a given real-world robotically controlled electrostatic paint gun. Next, paint deposition of the given real-world robotically controlled electrostatic paint gun in a virtual environment is represented which includes, for a subject time period, computing total paint accumulation (electrostatic and direct) on a given surface element of a model representing the real-world object. In turn, a parameter file is generated that includes parameters accounting for the determined total paint accumulation for the given surface element, where the generated parameter file enables precision operation of the given real-world robotically controlled electrostatic paint gun to paint the real-world object.

An electrostatic atomizing coating apparatus and method incorporate a rotary head having a base portion, an open end and a plurality of grooves formed radially on an inner peripheral surface of the open end, an inside diameter of the rotary head increasing from the base portion toward the open end, and a motor configured to rotate the rotary head to discharge a thread-shaped paint. A voltage is applied to the rotary head so as to form an electrostatic field between the open end of the rotary head and an earthed coating target and to electrostatically atomize the thread-shaped paint discharged from the open end. Voltage output from the generator is controlled so as to adjust an intensity of the electrostatic field and to control a particle diameter of the electrostatically atomized thread-shaped paint.

A curved substrate with a film includes a substrate having a first main surface, a second main surface and an end surface, and an antiglare film provided on the first main surface. The substrate has a flat portion and a bent portion. A value obtained by dividing a reflected-image diffusibility index value R of the bent portion by the sum of the reflected-image diffusibility index value R of the bent portion and a reflected-image diffusibility index value R of the flat portion is 0.3 or higher and 0.8 or less.

A bell cup (3) of a rotary atomization-type coating device (1) is provided. This device has a rotary shaft (13) and a feed tube (15) inserted in the rotary shaft. The bell cup is fitted to a tip end part of the rotary shaft and has a coating material spreading surface (31) on an inner surface of the bell cup. The feed tube discharges a coating material to the coating material spreading surface. The coating material spreading surface includes a region extending from a predetermined position on a proximal end side to a distal end edge. The region is constituted of a convex curved surface toward an extension of the rotary shaft. The outermost surface of at least part (31B) of the coating material spreading surface is covered by a diamond-like carbon film (50) free from silicon at least on its outermost surface.

A rotary atomiser bell cup comprising a bell portion 5 for spraying media in use and a hub portion 6 via which the bell portion 5 is rotatingly drivable in use, wherein the hub portion 6 is a machined metal portion and the bell portion 5 has been built up on the hub using an additive manufacturing process.

A coating device includes a rotary head, a power supply part that applies a voltage to the rotary head, and a control part that controls the power supply part. The rotary head is configured so that a coating material is electrostatically atomized. The control part is configured so as to calculate a discharge current based on a total current flowing from the power supply part to the rotary head and a leak current, and control the power supply part based on the discharge current.

A shaping air spurting member (9) is formed in a tubular shape by using a conductive material, and is arranged on an outer peripheral side of a rotary atomizing head (4) in a state where a front end thereof is positioned in an intermediate section of the rotary atomizing head (4) in a length direction. The shaping air spurting member (9) has a front surface section (9D) that is provided with many numbers of air spurting holes (10, 12) for spurting shaping air toward paint particles sprayed from the rotary atomizing head (4). In addition, a shield member (14) composed of an annular body extending radially is provided on an outer diameter side of the front surface section (9D) in the shaping air spurting member (9) to shield electric flux lines traveling toward the rotary atomizing head (4) from each of electrodes (6C) in an external electrode member (6).

A spray system includes a spray applicator configured to apply a fluid to a target. The spray system also includes a rotary bell cup of the spray applicator, a splash plate of the spray applicator coupled to the rotary bell cup, and a fluid tip of the spray applicator. The fluid tip is configured to output the fluid onto the rotary bell cup. The fluid tip includes a fluid tip passage extending along a longitudinal fluid tip axis of the fluid tip. The longitudinal fluid tip axis intersects with the splash plate of the spray applicator. The fluid tip also includes a fluid exit port configured to output the fluid from the fluid tip passage onto the rotary bell cup. The fluid exit port extends along a fluid exit axis disposed at an angle relative to the longitudinal fluid tip axis of the fluid tip.

A rotary atomization head is provided, which prevents discharged threads of a coating material from making contact with each other and from being unified. A rotary head 1 includes: a diffusion surface 122 to diffuse the coating material toward an outer edge part 123 by centrifugal force; and a plurality of grooves 124 formed on the outer edge part 123. The plurality of grooves 124 extends in a radial direction. The adjacent grooves 124 have different depths. The grooves 124 have the same width.

The electrostatic coating plant includes an abnormality detection unit that detects abnormalities of a bumper. The detection of the abnormalities can be based on the difference between the level of the high voltage outputted from a high voltage generator, and the voltage level obtained when the electrostatic coating machine, which is not spraying coating material, is placed at a measurement position opposite to and separated by a predetermined separation distance from multiple measurement points on the bumper, arranged at the coating position, and lines of electric force are formed to the bumper with a constant current level.