Abstract:
PROBLEM TO BE SOLVED: To provide a color mixture electrostatic coating apparatus which reduces the amount of coating wasted at the coating of a conductive coating and the amount to be used of a washing liquid, and which shortens the washing time and improves the coating efficiency. SOLUTION: The color mixture electrostatic coating apparatus has a structure that provides a recovery valve 49, 49' to recover the coating remained at a first discharge passage 27, 27' and a second discharge passage 30, 30' to each tank 4, 4', 16, 16' after the completion of the coating of the X color coating where an A color coating and a B color coating are mixed. Thus, for example, pressurized air is supplied to the first discharge passage 27 by the recovery valve 49 and the remaining coating within the first discharge passage 27 is recovered into the first tank 4 and caused to become an insulated state by emptying the inside. Similarly, the remaining coating within the second discharge passage 30 is recovered into the second tank 16. On the other hand, the coating line 58 consisting of a supply passage 43, a pump unit 45, a coating machine 62 and the like are washed by a washing valve 55 after the completion of coating. Thus, the amount of the coating wasted is reduced and the range to be washed can be lessened. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an electrostatic coating apparatus which reduces the amount of coating wasted at the coating of a conductive coating and the amount to be used of a washing liquid, and which shortens the washing time and improves the coating efficiency. SOLUTION: The electrostatic coating apparatus has a structure that provides a recovery valve 51 to recover the coating remained at a first and second discharge passages 29, 32 to each tank 6, 18 after the completion of coating. Thus, for example, pressurized air from a pressurized air source 25 is supplied to the first discharge passage 29 by the recovery valve 51 and the remaining coating within the first discharge passage 29 is recovered into the first tank 6 and caused to become an insulated state by emptying the inside. Similarly, the remaining coating within the second discharge passage 32 can be recovered into the second tank 18. On the other hand, the coating line 60 consisting of a supply passage 45, a pump unit 47, a coating machine 3 and the like are washed by a washing valve 57 after the completion of coating. Thus, the amount of the coating wasted is reduced and the range to be washed can be lessened. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method for color-changing and coating many colors of coats without discharging coats by arranging, attachably and detachably, a cartridge for each color of coat on a coating apparatus. SOLUTION: The coating method by the coating apparatus comprises a step for attaching the cartridge for the coat on a housing, a step for providing a coat in the cartridge for the coat to a rotary atomizing head, a step for detaching a used cartridge for the coat from the housing, and a step for attaching the cartridge for washing on the housing to wash a preceding coat adhered to the rotary atomizing head. Therefore, even if color-changing of the coat, a following coat can be coated by merely changing the cartridge for the coat without discharging the preceding coat. COPYRIGHT: (C)2005,JPO&NCIPI
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).