| 摘要 |
PURPOSE:To carry in and carry out a printed circuit board provided with electronic parts on both sides, without causing a contact hindrance, and to curtail a take-out solvent, by turning simultaneously a pair of endless chains with a supporting part to both sides of a device extending over an overall length. CONSTITUTION:An endless chain 61 provided with a supporting member 75 is provided on both sides extending over an overall length of a reflow type soldering device 10, and turned round synchronously by a motor 48. Also, conveyor frames 43, 44 loaded with this endless chain 61 are slid on a guide frame 41 by operating mechanisms 51-59, and width of the endless chain 61 is adjusted to match width of a printed circuit board P. According to this method, even the printed circuit board P provided with electronic parts W on both sides can be carried in and carried out without causing a contact hindrance, in a pre-heater 27, and a vapor tank 11, Also, the consumption of a solvent 15 is curtailed by eliminating an adhesion and a discharge of a fluorine compound inactive solvent vapor 15a such as in case of a conventional net-shaped endless belt. |
