Painting robot
AssigneeABB Schweiz AG
InventorTakahiro Tawata
Life of this patent
Estimating the term…
Abstract
A painting robot is provided with painting head unit that has a plurality of nozzles to eject droplets and painting head that is provided with piezoelectric substrate to eject the droplets from nozzles, robot arm to move said painting head unit to a desired position, and paint supply mechanism that may be installed between robot arm and painting head unit. Also, paint supply mechanism is provided with paint supply channel to provide paint towards painting head, return flow channel to recover paint that was not discharged from nozzle, an air-operated paint regulator that has been installed in paint supply channel for which the valve opening position can be adjusted in response to the controlled air pressure, and orifice that has been installed on the downstream side of paint supply channel facing painting head side.
Claims18
A painting robot for painting a vehicle, comprising:
- a painting head unit, wherein the painting head unit includes:
- a plurality of nozzles for ejecting droplets, and
- a painting head configured with a piezoelectric substrate that
- may be driven to eject said droplets from said plurality of nozzles;
- a robot arm to which said painting head unit is mounted, wherein the robot arm is configured to move said painting head unit to a desired position;
- and
- a paint supply mechanism positioned between said robot arm and said painting head unit,
- wherein said paint supply mechanism includes:
- a paint supply channel to provide paint towards said painting head,
- a return flow channel that is connected to a paint discharge side of said painting head unit, wherein the return flow channel is configured to recover paint that was not discharged from said plurality of nozzles,
- a pneumatic control valve installed in said paint supply channel, wherein a valve opening position of the pneumatic control valve is configured to be adjusted in response to a controlled air pressure, and
- a pressure boosting mechanism positioned downstream of said paint supply channel facing said painting head from said pneumatic control valve, wherein the pressure boosting mechanism is configured to increase a pressure of paint that is supplied to said pneumatic control valve.
A painting robot for painting a vehicle, comprising:
- a painting head unit, wherein the painting head unit includes:
- a plurality of nozzles for ejecting droplets, and
- a painting head configured with a piezoelectric substrate that may be driven to
- eject said droplets from said plurality of nozzles;
- a robot arm to which said painting head unit is mounted, wherein the robot arm is configured to move said painting head unit to a desired position;
- and
- a paint supply mechanism positioned between said robot arm and said painting head unit,
- wherein said paint supply mechanism includes:
- a paint supply channel to provide paint towards said painting head,
- a return flow channel that is connected to a paint discharge side of said painting head unit, wherein the return flow channel is configured to recover paint that was not discharged from said plurality of nozzles,
- a pneumatic control valve installed in said paint supply channel, wherein
- an opening position of the pneumatic control valve is configured to be adjusted in response to a controlled air pressure, and
- a pressure boosting mechanism positioned upstream side of said pneumatic control valve, wherein the pressure boosting mechanism is configured to increase a pressure of paint that is supplied to said pneumatic control valve.
A painting robot for painting a vehicle, comprising:
- a painting head unit, wherein the painting head unit includes:
- a plurality of nozzles for ejecting droplets, and
- a painting head configured with a piezoelectric substrate that may be driven to eject said droplets from said plurality of nozzles;
- a robot arm to which said painting head unit is mounted, wherein the robot arm is configured to move said painting head unit to a desired position;
- and
- a paint supply mechanism positioned between said robot arm and said painting head unit,
- wherein said paint supply mechanism includes:
- a paint supply channel to provide paint towards said painting head,
- a return flow channel that is connected to a paint discharge side of said painting head unit, wherein the return flow channel is configured to recover paint that was not discharged from said plurality of nozzles,
- a pneumatic control valve installed in said paint supply channel, wherein
- an opening position of the pneumatic control valve is configured to be adjusted in response to a controlled air pressure, and
- a pressure boosting mechanism configured to increase a pressure of paint that is supplied to said pneumatic control valve.
Dependencies are inferred from the claim text.