Abstract:
A washing fluid is supplied from the front surface of a rotary atomization head (28) by using a washing nozzle (14) to wash the head (28). A coating machine (20) is so mounted to a coating robot (1) as to be capable of moving in an arbitrary direction and a washing machine (10) for an atomization head is disposed in the proximity of the coating robot (1). The coating robot (1) is operated at the time of washing and the rotary atomization head (28) of the coating machine (20) is inserted into a waste liquid recovery container (13) of the washing machine (10) for the atomization head. A thinner is discharged from a washing nozzle (14) under this state and is supplied to the front surface of a hub member (30) constituting the rotary atomization head (28). The thinner flows from a solvent outflow port (30C) formed in the hub member (30) into the rotary atomization head (28) and washes away the paint adhering to the rotary atomization head (28).
Abstract:
When it is desired to change a cartridge (25) with respect to a painting device (11), this is done by removing a filled cartridge (25) of next color from a paint filling device (55a-55n) by one gripper (101) of a cartridge gripping device (100). With the filled cartridge (25) held by one gripper (101), a used cartridge (25) is gripped and removed from the painting device (11) by the other gripper (102). Further, the filled cartridge (25) held by one gripper (101) is attached to the painting device (11) and the empty cartridge (25) is returned to the paint filling device (55a-55n) by the other gripper (102). This makes it possible to simplify the changing operation of cartridges (25).
Abstract:
An automatic painting device that prevents malfunction of a gripper (56) and poor painting due to nonfilling or insufficient filling of paint, and improves reliability. A cartridge gripping device (55) comprises a gripper (56) having a gripping pawl (66) for gripping a cartridge (25), a gripping state detecting switch (67) for detecting whether or not the gripper (56) grips the cartridge (25), and a filled state detecting switch (68) for detecting whether or not the cartridge (25) gripped by the gripper (56) is filled with paint. Thereby, when the cartridge (25) is gripped by the gripper (56), the gripping state detecting switch (67) is capable of confirming the gripping state of the cartridge (25). Further, the filled state detecting switch (68) is capable of confirming the filled state of the paint in the cartridge (25).
Abstract:
A paint cartridge (31) is provided with a wash fluid passage (43) which is in communication with a paint chamber (36), along with a wash fluid valve (45) which is adapted to open and close the wash fluid passage (43). Provided on the side of a replenishing stool (52) are a replenishing valve (61) which supplies or discharges paint to or from the paint chamber (36), an extruding thinner feed/discharge valve (86) which supplies or discharges paint-extruding thinner to or from an extruding thinner chamber (37), and a wash fluid supply valve (101) which supplies a wash fluid to the paint chamber (36) through the wash fluid passage (43). Accordingly, upon opening the replenishing valve (61), wash fluid supply valve (101) and wash fluid valve (45), a wash fluid from the wash fluid supply valve (101) is allowed to flow into the paint chamber (36) through the wash fluid passage (43) and discharged through a feed tube (34) to wash away deposited paint therefrom.
Abstract:
A rotary atomizing head type coating device capable of effecting coating while changing coating materials of many colors. A housing (12) equipped with a coating device (19) is attached to the wrist (5) of a coating robot. Separate feed units (29) each containing a coating material valve (40) and a solvent valve (41) are provided for each of the colors. Each feed unit (29) is connected to a coating material feed line (49) of each of the colors and to a solvent feed line (52) through a coating material hose (42) and a solvent hose (43). At the time of the coating operation, a feed unit (29) is changed and is attached to the housing (12) to feed the coating material of each of the colors to the coating device (19). Since a feed unit (29) is changed and is attached to the coating device (19), a single coating unit (11) makes it possible to execute the coating while changing the coating materials of many colors.
Abstract:
A cartridge (35) of each of the colors is detachably attached to a coating device (21) so that the coating materials of many colors can be applied by being changed one by one without discharging the coating materials. The cartridge (35) of each of the colors is changeably attached to the housing (22). The cartridge (35) is further provided with a coating valve (46) which provides communication and cutoff of a thinner valve (54) which provides communication and cutoff of a coating material feed passage (39A) in a feed tube (39). Either the housing (22) or the cartridge (35) is provided with a thinner passage (48) on the side of the housing. Thus, the single coating device (21) copes with the operation for changing many colors. The coating material valve (46) and the thinner valve (54) are opened and closed by a coating material spray instruction and a stop instruction, therefore, immediately after the instruction, the spray of coating material is started or stopped.
Abstract:
Mounted on a wrist portion (10) of a single coating robot (6) is a common main assembly body (11) to which a plural number of bell-shape heads (42, 81, 83) are replaceably connectible. Further, a head changer (61) is provided within a working area of the coating robot (6), the head changer (61) being provided with head gripping mechanisms (63) to hold a plural number of bell-shape heads (42, 81, 83) thereon. By the use of the coating robot (6), one of the bell-shape heads (42, 81, 83) on the head changer (61) is replaceably connected to the common main assembly body (11) to form a complete sprayer (55, 101). Accordingly, the coating robot (6) can perform various coating operations by selectively picking up a suitable bell-shape head (42, 81, 83) from the head changer (61) and connecting same to the common main assembly body (11).
Abstract:
A paint filling device (51) comprises a filling stand (52) having a filling stand-associated feed tube insertion hole (56) and a bomb support (57), a connecting member (59) for communicatively connecting the front end of a feed tube (28), and a filling valve (61) for starting or stopping the feeding of paint from a paint feed source into the connecting member (59). Therefore, a cartridge (25) is attached to the bomb support (57), and the feed tube (28) is inserted into the filling stand-associated feed tube insertion hole (56) with the front end thereof fitted in the connecting member (59). In this state, the filling valve (61) is opened to feed the paint from the paint feed source into the connecting member (59) so that the front end opening in the feed tube (28) can be utilized as a filling port and paint can be filled into the bomb (26) of the cartridge (25).
Abstract:
A painting device capable of shortening a color change time by the preparation of feed units (20A to 20H) for each color paint, wherein unit standby devices (35A to 35H) for each color are arranged near a painting robot (1), the unit standby devices (35A to 35H) are formed of feed unit attaching and detaching devices (36) for attaching and detaching feed units (20A to 20H) on and from a rotationally atomizing head type painting machine (6) mounted at the tip of an arm (4) of the painting robot (1) and a standby device side hose holding device (40) for delivering supply hoses (30A to 30H) with an arm side hose holding device (32) mounted on the arm (4), whereby the feed units (20A to 20H) for each color can be mounted interchangeably between the rotationally atomizing head type painting machine (6) and unit standby devices (35A to 35H) for each color change.
Abstract:
A coating method capable of applying paints of many colors interchangeably by providing detachably a paint cartridge (35) for each color to a rotary atomizing head type coating device (21) used for the painting method, comparing a paint cartridge attaching step for attaching the paint cartridge (35) to a housing (22), a painting step for supplying paint in the cartridge (35) to a rotary atomizing head (30), a paint cartridge removing step for removing a used cartridge (35) from the housing (22), and a cleaning step for supplying a cleaning liquid to the front of the atomizing head (30) by means of an atomizing head cleaning device (57) and cleaning the previous color paint attached to the head (30). Therefore, the next color paint can be applied by simply changing, after cleaning the head (30) from the front side thereof, a paint cartridge (35) when a paint color is to be changed.