| 摘要 |
PURPOSE:To prevent a casting mold which is charged therein with a molten metal and is pulled from a molding flask charged therein with the molten metal after primary cooling of said flask, from cracking largely and scattering sand during secondary cooling by putting an inexpensive cover flask on said mold and subjecting the mold to secondary cooling. CONSTITUTION:While a molding flask 14 charged therein with a molten metal is cooled on a primary cooling pool line 6, the flask is fed to a flask feeder 13, where a carriage 44 for a molding board is lowered and separated and thereafter the mold is fed into the position of a rapping station 15. A mold ejector plate 46 which can be penetrated through the flask 14 is lifted by a cylinder 45 to eject the casting mold charged therein with the molten metal in the flask 14 from the flask 14 and to put the mold, via a guide flask 47, into a cover flask 19 which is prevented from floating in the upper part. Such mold is placed on a carriage 26a for a molding board by a lifter 20 and is conveyed over the feed line 23 and return line 22 of a secondary cooling pool line 26 while it is cooled. The mold is carried from the carriage 25 into a cleaner 27 for the inside surface of the cover flask serving also as a knockout device. |
