Abstract:
An electrode ring suitable for providing electrostatic assistance to the high-speed rotary application of spray coatings and having electrode fingers comprising electrode tips, wherein the electrode ring is constructed so as to be capable of performing rotational movements about the axis directed through the center of the circle thereof.
Abstract:
A coating machine in which a machine body formed with a coating material atomizing mechanism is detachably provided with a cartridge for filling a coating material wherein a cartridge attaching portion formed to the machine body is provided with a guide that slidably guides a new cartridge driven in from one end into a coupling position and drives a used cartridge pushed by the new cartridge from the coupling position to the other end.
Abstract:
In a method of application of a coating medium by use of a spray device onto a moving surface, which in the direct application method is the surface of a material web, specifically a paper or cardboard web, an atmosphere of back-moistening and/or moistening medium for the atomized coating medium is maintained in the area of the spray device.
Abstract:
In a method of application of a coating medium by use of a spray device onto a moving surface, which in the direct application method is the surface of a material web, specifically a paper or cardboard web, an atmosphere of back-moistening and/or moistening medium for the atomized coating medium is maintained in the area of the spray device.
Abstract:
A rotary atomizing head type coating system capable of multiple color changes in the course of a coating operation. A housing (12) with a coating machine (19) is mounted on a wrist portion (5) of a coating robot. Provided for the coating system are a plural number of feeder units (29) which serve as separate sources for a variety of paint colors and which each accommodate a paint valve (40) and a solvent valve (41). Through paint hoses (42) and solvent hoses (43), the respective feeder unit (29) are connected to paint supply lines (49) of different colors and a solvent supply line (52). In order to supply paint of different colors to the coating machine (19) during a coating operation, the feeder units (29) are selectively and replaceably loaded into the housing (12). The use of a plural number of feeder units (29) which can be replaceably attached to the coating machine (19) makes it possible for the coating system (11) to cope with multiple color changes whenever necessary in the course of a coating operation.
Abstract:
A method and system are provided for adjusting a discharge width of a powder feeder. The system includes a supply hopper that is spaced from the powder feeder. The powder feeder includes a receiving opening and a discharge opening and at least one adjustable wall. Preferably, two adjustable walls are provided. Movement of the two adjustable walls provides variations in the width of the discharge opening and therefore facilitates use of the powder feeder on target volumes or target areas having different widths. A rotatable auger brush is in communication with the supply hopper for causing powder withdrawn from the supply hopper to be transported to the powder feeder and disposed uniformly across the receiving opening of the powder feeder. The brush is immersed within the powder and extends across the receiving opening of the powder feeder, and maintains a filled level powder feeder. The powder feeder is particularly well-suited for use in a coating apparatus, as well as a dual-side coating apparatus.
Abstract:
A coating system which is provided with a plural number of feeder units for different paint colors in such a way as to permit color changes within a shortened period of time. Unit waiting devices for different paint colors are located in the vicinity of a coating robot. The unit waiting devices each include a feeder unit loader adapted to load and unload one of feeder units into and out of a rotary atomizing head type coating machine, which is mounted on a fore end portion of the arm of the coating robot, and a hose gripper adapted to hand over or receive one of supply hoses to and from a hose gripper which is provided on the side of the arm. As a consequence, the paint color can be changed by replacing a paint feeder unit on the coating machine by a specified one of feeder units of different colors which are supported on the unit waiting devices.
Abstract:
An electrically non-insulative, typically metal, atomizer bell is housed in a shroud-like housing. A prime mover, such as an air turbine motor, typically also housed in the housing, rotates the bell to atomize coating material delivered to the bell. A second shroud movable relative to the bell has a first, retracted orientation in which the second shroud does not shield the charging portion from the approach of articles to the bell and a second, projected orientation in which the second shroud does shield the bell from the approach of articles to reduce the likelihood of disruptive electrical discharges from the bell.
Abstract:
A rotary atomizing electrostatic coating apparatus includes a plurality of shaping air nozzles disposed on a first circle having its circle center on an axis of rotation of an atomizing head, a plurality of pattern control air nozzles disposed on a second circle having a larger diameter than the first circle. The pattern control air nozzles are located at 3-100 mm on a rear side of the shaping air nozzles and inside a circle having a diameter three times a diameter of the atomizing head. An air passable opening may be formed radially between the shaping air nozzles and the pattern control air nozzles.