| 摘要 |
PROBLEM TO BE SOLVED: To provide a coating head having a simple structure and capable of preventing the leakage of a coating material in setting-up and forming the coating film having a uniform thickness and a coating film forming apparatus provided with the coating head. SOLUTION: The coating film forming apparatus 1 is provided with a holding part, a moving part 12 and the coating head 13. The holding part holds a base body 4 in a state that a shaft center P is kept parallel to the vertical direction. The coating head 13 is provided with a head main body 37 which is formed annular box-like, houses the coating material 7, has opening parts over the whole inner peripheral surface and applies the coating material 7 on the outer peripheral surface 4c of the base body 4 by passing the base body 4 through the inside, a liquid level detecting sensor 53 for measuring the height of the liquid level 7a of the coating material 7 in the head main body 37, a volume changing part 14 capable of changing the volume of the coating material 7 to be housed in the head main body 37 and a controller 18 for properly changing the height of the liquid level 7a of the coating material 7 in the head main body 37 by controlling the volume changing part 14 based on the height of the liquid level 7a measured by the liquid level detecting sensor 53. COPYRIGHT: (C)2008,JPO&INPIT
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