Abb K.k.

Toyota Jidosha Kabushiki Kaisha

Ransburg Industrial Finishing K.k.

Harmonic Drive Systems Inc.

Ransburg Industrial Fishing Kk

Toshio Hosoda

Osamu Yoshida

Michio Mitsui

Hidetsugu Matsuda

Isamu Yamasaki

Shinji Tani

Masahito Sakakibara

Kimio Toda

Hiroshi Kobayashi

Yoshiyuki Abe

Hisanori Nakamura

Toshiaki Nakano

Atsuo Nabeshima

Kimiyoshi Nagai

Takanobu Mori

Kiyoto Kobayashi

Tomoaki Takeda

Akihiko Arichi

Youichi Hanai

Yoshiharu Yokomizo

Yoshinori Aida

Takeshi Ichikawa

Hideki Saito

Isamu Yamazaki

Norio Umezawa

The rotary atomizing painting device is provided with a bell cup () disposed at the most front part in the paint spray direction X and axially supported by a rotating shaft () and a shaping air ring () disposed rearward of this bell cup () in the paint spray direction and in which a plurality of discharge openings () is formed on the periphery centered on the rotating shaft (). The plurality of discharge openings () is formed such that the axial direction of the plurality of discharge openings () is in a direction and a slant to the rotating shaft (). The axial direction of the plurality of discharge openings () is formed to aim at a back surface part (), which is a part on the back surface side of the bell cup () from the paint spray direction.

Rotary atomizing painting device

A rotary atomizing head, which has an inner peripheral surfacewhose diameter increases from a bottomof the inner peripheral surface toward a tip thereof, and atomizes and releases paint by applying a centrifugal force generated by rotation to the paint supplied to the bottom of the inner peripheral surface, includes a paint supply nozzlefor supplying the paint and a cleaning solution to the bottom of the inner peripheral surface, and the paint supply nozzle has a nozzle holefor discharging the paint and the cleaning solution from a rotation center O portion of the rotary atomizing head in a direction substantially perpendicular to a rotation axis of the rotary atomizing head. The rotary atomizing headalso includes a dam portionthat is provided in an intermediate portion between the bottom and the tip of the inner peripheral surface and dams the paint and the cleaning solution supplied from the paint supply nozzle to the bottom and flow along the inner peripheral surface toward the tip.

Rotary atomizing head, rotary atomization coating apparatus, and rotary atomization coating method

An annular dam portion is formed along a circumference of an inner peripheral face of a rotary atomizer head and has a plurality of paint supply holes formed along the circumferential direction at the boundary between the annular dam portion and the inner peripheral face. The annular dam portion is disposed between the bottom of the inner peripheral face and the tip of the inner peripheral face. The dam portion is formed such that a substantially constant distance separates the inner peripheral face from the dam portion.

Rotary atomizer head, rotary atomizer painting device, rotary atomization painting method

Provided is an electrostatic coating apparatus capable of insulating an electric motor electrically from a member, to which an electrostatic high voltage is applied, and reducing the size and weight of the electrostatic coating apparatus. This electrostatic coating apparatus comprises a rotary atomizing head, to which high voltage is electrostatically applied, an electrostatically grounded AC servomotor, and a spindle and a fixed insulating member for insulating the AC servomotor electrically from the rotary atomizing head and a speed-increasing device to be set at the same potential as that of the former. The spindle and the fixed insulating member have insulation distance enlarging portions and of the mode, in which the creepage insulation distances from the speed-increasing device to the AC servomotor are enlarged.

Electrostatic coating apparatus with insulation enlarging portions

An electrostatic atomizerhas a removably attachable canister. Once a paint baghoused in the canisterexhausts, it is replaced by a new canister. Paint in a paint bagis driven out by a mono pumplocated in a pump segmentof the electrostatic atomizer. The mono pumphas a helical shaftinside a paint feed tube. The mono pumpis driven by a servomotor via an insulating drive shaft. Paint in the paint bagis drawn up when the helical shaftrotates, and it is delivered to a bell cupthrough the feed tube. Quantity of paint atomized by the bell cupand interruption of the atomization are controlled by controlling the rotation of the mono pump

Electrostatic atomizer and its cleaning method

A coating machineserving as a rotary atomizer comprises a hollow unrotary paint nozzle shaftprovided in the center of a motor shaftserving as its rotary shaft. The paint nozzle shaftis provided at a tip thereof with a gun-spray paint nozzleand a gun-spray air nozzleon the outside of the gun-spray paint nozzlein the diametrical direction, and a needle shaftis disposed in a paint passagein the paint nozzle shaftso as to serve as a valve mechanism for selectively supplying paint to either a bell cupor the gun-spray paint nozzle

Rotary atomizer and coating method by it

A paint cartridge is provided with a wash fluid passage in communication with a paint chamber, along with a wash fluid valve adapted to open and close the wash fluid passage. Provided on the side of a replenishing stool are a replenishing valve which supplies or discharges paint to or from the paint chamber, an extruding thinner feed/discharge valve which supplies or discharges paint-extruding thinner to or from an extruding thinner chamber, and a wash fluid supply valve which supplies a wash fluid to the paint chamber through the wash fluid passage. Accordingly, upon opening the replenishing valve, wash fluid supply valve and wash fluid valve, a wash fluid from the wash fluid supply valve is allowed to flow into the paint chamber through the wash fluid passage and discharged through a feed tube to wash away deposited paint therefrom.

Cartridge type coating system

When replacing a paint cartridge ( ) on the coating apparatus ( ), a replenished paint cartridge of a next paint color is picked up from one of paint replenisher units ( to ) by one gripper member ( ) of a cartridge gripper ( ). In the next place, while the replenished paint cartridge ( ) is being continuously gripped on one gripper member ( ), a consumed or empty paint cartridge ( ) is gripped and removed from the housing ( ) by the other gripper member ( ). Then, the replenished paint cartridge on one gripper member ( ) is loaded on the housing ( ), and the empty paint cartridge ( ) is returned to a corresponding one of the paint replenisher units ( to ). Thus, the paint cartridges ( ) can be replaced in a significantly simplified manner.

Automatic coating method and apparatus

An apparatus for replenishing paint into a paint cartridge ( ), which is capable of putting paint in respiratory circulation while the cartridge is in a waiting state. The apparatus includes a replenishing valve ( ) which is capable of feeding paint to and from a paint chamber ( ) of the paint cartridge ( ) which is set on a replenishing stool ( ), and a respiratory paint circulation valve ( ) which is capable of feeding paint-extruding thinner to and from a thinner chamber ( ) of the cartridge. After switching the replenishing valve ( ) to a drain or discharge side, paint-extruding thinner is supplied from the respiratory paint circulation valve ( ) to push paint out of the paint chamber ( ) of the cartridge ( ). Then, after switching the replenishing valve ( ) to the side of a paint supply source, paint-extruding thinner is discharged by way of the respiratory paint circulation valve ( ) to suck paint into the paint chamber ( ). As a consequence, paint in the cartridge ( ) is put in respiratory circulation to prevent separation and sedimentation of pigment components of the paint.

Cartridge paint-charging method and device therefor

Mounted on a wrist portion ( ) of a single coating robot ( ) is a common main assembly body ( ) to which a plural number of bell-shape heads ( ) are replaceably connectible. Further, a head changer ( ) is provided within a working area of the coating robot ( ), the head changer ( ) being provided with head gripping mechanisms ( ) to hold a plural number of bell-shape heads ( ) thereon. By the use of the coating robot ( ), one of the bell-shape heads ( ) on the head changer ( ) is replaceably connected to the common main assembly body ( ) to form a complete sprayer ( ). Accordingly, the coating robot ( ) can perform various coating operations by selectively picking up a suitable bell-shape head ( ) from the head changer ( ) and connecting same to the common main assembly body ( ).

Automatic coating apparatus

Automatic painting method and device therefor

An automatic coating apparatus which is arranged to guarantee higher operational reliability, particularly to preclude coating defects as caused by malfunctioning of a cartridge gripper ( ) or by the use of an non-replenished or deficiently replenished paint cartridge. A cartridge gripper assembly ( ) is constituted by a gripper member ( ) with gripper claws for gripping a paint cartridge ( ), a grip detector switch ( ) which is adapted to detect whether or not the paint cartridge ( ) is securely gripped by the gripper. ( ), and a replenishment level detector switch ( ) which is adapted to detect whether or not the paint cartridge ( ) is replenished with paint to a predetermined extent. Therefore, as the paint cartridge ( ) is gripped by the cartridge gripper ( ), the grip condition on the paint cartridge ( ) can be monitor by the grip detector switch ( ). At the same time, a replenished paint level within the cartridge ( ) can be monitored from outside by the replenishment level detector switch ( ).

Automatic painting device

A paint cartridge replenisher (,) is constituted by a replenishing stool (,) having a feed tube passage hole (,) and a container support portion (,), a connector member (,) connectable to and communicable with a fore distal end of a feed tube (,), and a replenishing valve (,) operative to turn on and off paint supply from a paint source to the connector member (,). A paint cartridge (,) is set on the container support portion (,), thereby passing the feed tube (,) into the feed tube passage hole (,) on the side of the replenishing stool and bringing a fore distal end portion of the feed tube (,) into fitting engagement with the connector member (,). In this state, the replenishing valve (,) is opened, whereupon paint is supplied from the paint source to the connector member (,) and replenished into the container (,) of the paint cartridge (,), utilizing the opening at the fore distal end of the feed tube as a replenishing port of the paint cartridge (,).

Growing community of inventors

Yokohama, Japan

Toshio Hosoda