Abstract: A coating nozzle is provided. The coating nozzle includes: a chamber portion, communicated with a coating material supply portion; a supply surface, disposed on a side of the chamber portion; a discharge surface, disposed on other side of the chamber portion opposite to the supply surface and used to discharge the coating material; supply holes, annularly arranged on the supply surface with a first position as a center; discharge holes, arranged into at least one straight line on the discharge surface; and communication hole paths, respectively and correspondingly communicated from the supply holes on the supply surface to the discharge holes on the discharge surface. The communicating holes respectively have different lengths. The communication hole paths include a large diameter portion and a small diameter portion whose diameter is shorter that of the large diameter portion. The small diameter portions respectively have different diameters or lengths.

Abstract: A teaching line correcting apparatus defines a first plane, which is determined by a first reference position of a preset first reference region, a second reference position of a preset second reference region, and a third reference position of a preset third reference region, defines a second plane, which is determined by a detected position of the first reference region, a detected position of the second reference region, and a detected position of the third reference region, calculates a corrective value for equalizing the first reference region to an origin, equalizing the first reference position of the first reference region as the origin to the detected position of the first reference region as the origin, and equalizing the first plane to the second plane, and correcting reference coordinates where operating points are taught based on the calculated corrective value.

Abstract: A teaching line correcting apparatus defines a first plane, which is determined by a first reference position of a preset first reference region, a second reference position of a preset second reference region, and a third reference position of a preset third reference region, defines a second plane, which is determined by a detected position of the first reference region, a detected position of the second reference region, and a detected position of the third reference region, calculates a corrective value for equalizing the first reference region to an origin, equalizing the first reference position of the first reference region as the origin to the detected position of the first reference region as the origin, and equalizing the first plane to the second plane, and correcting reference coordinates where operating points are taught based on the calculated corrective value.