Coating application method and application apparatus
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- MUSASHI ENG INC
- Filing Date
- 2026-01-21
- Publication Date
- 2026-07-30
Smart Images
Figure JP2026001744_30072026_PF_FP_ABST
Abstract
Claims
1. A coating method comprising: a coating area setting step of setting a coating area on an object to be coated, a coating prohibition area, a peripheral area of the coating prohibition area, a first directional path consisting of a straight line extending in a first direction, and a second directional path consisting of a straight line extending in a second direction perpendicular to the first direction; a first coating step of forming a plurality of first strip-shaped coated portions extending in the first direction while moving a dispensing device for dispensing a liquid material and the object to be coated relative to each other along the first directional path; and a second coating step of forming a plurality of second strip-shaped coated portions extending in the second direction while moving the dispensing device and the object to be coated relative to each other along the second directional path, wherein the peripheral area includes a plurality of second directional paths in contact with one side surface of the prohibition area in the first direction.
2. The coating method according to claim 1, characterized in that the peripheral region further includes a plurality of second directional paths that are in contact with the other side surface in the first direction of the prohibited region.
3. The coating method according to claim 1, characterized in that, in the second coating step, a plurality of second strip-shaped coating portions extending in the second direction having the same coating width as a plurality of first strip-shaped coating portions extending in the first direction is formed.
4. The coating method according to claim 3, characterized in that the relative movement speed and the distance between the discharge device and the object to be coated in the first coating step are the same as the relative movement speed and the distance between the discharge device and the object to be coated in the second coating step.
5. The coating application method according to claim 1, characterized in that the discharge device is equipped with a nozzle for spray application.
6. The coating method according to claim 1, characterized in that the surrounding area is set to a rectangular area in the coating area setting step.
7. The coating method according to claim 5, characterized in that, in the coating area setting step, the peripheral area is set to a rectangular area, and the portion of the peripheral area excluding the coating prohibited area and the second directional path is set to a supplemental coating area, and further comprising a third coating step of coating the supplemental coating area with a second dispensing device that performs droplet coating or linear coating.
8. The coating application method according to claim 7, characterized in that the second discharge device is a jet-type discharge device.
9. The coating method according to claim 1, characterized in that, in the coating area setting step, a first rectangular area and a second rectangular area are set surrounding the coating prohibition area, and a second directional path is set which includes the area sandwiched between the first rectangular area and the second rectangular area, and has a length of n times the coating width of the plurality of first strip-shaped coating portions extending in the first direction (where n is a natural number of 2 or more).
10. The coating method according to claim 1, characterized in that, in the first coating step, when the nozzle needs to be folded back near the edge of the object to be coated, the acceleration / deceleration and direction change of the nozzle are performed outside the first strip-shaped coating area.
11. The coating application method according to claim 1, wherein the first directional path includes a starting-side first directional subpath and an ending-side first directional subpath arranged on a straight line extending in the first direction, flanking the peripheral region, and the first coating step includes decelerating the nozzle within the range of the plurality of second directional paths adjacent to the ending point of the starting-side first directional subpath, and accelerating the nozzle within the range of the plurality of second directional paths adjacent to the starting point of the ending-side first directional subpath.
12. The coating application method according to claim 1, characterized in that the coating prohibition area is a protrusion provided on the object to be coated.
13. The coating application method according to claim 12, characterized in that, in the first coating step, the nozzle is raised, passes over the protrusion, and then the nozzle is lowered in order to avoid contact between the protrusion and the nozzle.
14. The coating method according to claim 11, characterized in that, in the first coating step, the nozzle moves at the same speed along the starting point side first direction path and the ending point side first direction path.
15. The coating application method according to claim 1, characterized in that the coating prohibition area is a protrusion provided on the object to be coated, and in the coating area setting step, there is one first direction path that overlaps with the surrounding area on a straight line extending in the first direction.
16. The coating method according to 15, characterized in that, in the first coating step, when the nozzle needs to reverse direction in the vicinity of the peripheral region in the first direction path that overlaps with the peripheral region on a straight line extending in the first direction, the discharge device decelerates within the range of the plurality of second direction paths.
17. The coating application method according to claim 2, characterized in that the peripheral region has a different number of second directional paths that contact one side surface of the prohibited region in the first direction and a different number of second directional paths that contact the other side surface of the prohibited region in the first direction.
18. A coating apparatus comprising: a dispensing device for dispensing a liquid material; a holding device for holding an object to be coated; a robot for moving the dispensing device and the holding device relative to each other; and a control device including a coating program for performing coating on the object to be coated, wherein the coating program includes: a coating area setting step for setting a coating prohibition area, a peripheral area of the coating prohibition area, a first directional path consisting of a straight line extending in a first direction, and a second directional path consisting of a straight line extending in a second direction perpendicular to the first direction on the object to be coated; a first coating step for forming a plurality of first strip-shaped coated portions extending in the first direction while the robot moves the dispensing device and the object to be coated relative to each other along the first directional path; and a second coating step for forming a plurality of second strip-shaped coated portions extending in a second direction on the peripheral area while the robot moves the dispensing device and the object to be coated relative to each other along the second directional path, wherein the peripheral area includes a plurality of second directional paths in contact with one side of the prohibition area in the first direction.
19. The coating apparatus according to claim 18, characterized in that the peripheral region further includes a plurality of second directional paths that are in contact with the other side surface in the first direction of the prohibited region.
20. The coating apparatus according to claim 18, characterized in that the coating program, in the second coating step, forms a plurality of second strip-shaped coating portions extending in the second direction having the same coating width as a plurality of first strip-shaped coating portions extending in the first direction.
21. The coating apparatus according to claim 18, characterized in that the discharge device is equipped with a nozzle for spray coating.
22. The coating apparatus according to claim 18, characterized in that, in the coating area setting step, the surrounding area is set to a rectangular area.
23. The coating apparatus according to 21, further comprising a second dispensing device for droplet coating or linear coating, wherein in the coating area setting step, the peripheral area is set to a rectangular area, and the portion excluding the coating prohibition area and the second directional path is set to a supplemental coating area, and further comprising a third coating step in which the coating program is coated in the supplemental coating area by the second dispensing device.
24. The coating apparatus according to 23, characterized in that the second discharge device is a jet-type discharge device.
25. The coating apparatus according to claim 18, characterized in that, in the first coating step, when the nozzle needs to be folded back near the edge of the object to be coated, the nozzle is accelerated, decelerated and its direction changed outside the first strip-shaped coating area.
26. The coating apparatus according to claim 18, wherein the first directional path includes a starting-side first directional subpath and an ending-side first directional subpath arranged on a straight line extending in the first direction, flanking the peripheral region, and the first coating step includes decelerating the nozzle within the range of the plurality of second directional paths adjacent to the ending point of the starting-side first directional subpath, and accelerating the nozzle within the range of the plurality of second directional paths adjacent to the starting point of the ending-side first directional subpath.
27. The coating apparatus according to claim 18, characterized in that the coating prohibition area is a protrusion provided on the object to be coated.
28. The coating apparatus according to claim 27, characterized in that, in the first coating step, the nozzle is raised, passes over the protrusion, and then the nozzle is lowered in order to avoid contact between the protrusion and the nozzle.
29. The coating apparatus according to 26, characterized in that, in the first coating step, the nozzle moves at the same speed along the starting point side first direction path and the ending point side first direction path.
30. The coating apparatus according to claim 18, characterized in that the coating prohibition area is a protrusion provided on the object to be coated, and in the coating area setting step, there is one first direction path that overlaps with the surrounding area on a straight line extending in the first direction.
31. The coating apparatus according to 30, characterized in that, in the first coating step, when the nozzle needs to reverse direction in the vicinity of the peripheral region in the first directional path that overlaps with the peripheral region on a straight line extending in the first direction, the discharge device decelerates within the range of the plurality of second directional paths.
32. The coating apparatus according to claim 19, characterized in that the peripheral region has a different number of second directional paths that contact one side surface in the first direction of the prohibited region and a different number of second directional paths that contact the other side surface in the first direction of the prohibited region.