| 摘要 |
PURPOSE:To form the good film with good efficiency by intermittently feeding a pattern by a trolley conveyor in one direction and dipping the same into a binder tank and a sand tank by alternately moving these tanks upward and downward. CONSTITUTION:When a trolley conveyor device 1 is driven and a pattern 16 is fed by the specified amount and stops, a cylinder 45 actuates to revolve a barrel body 10 together with the pattern 16 in order to let a friction roller 43 make pressure contact with the outside circumference of the barrel body 10. On the other hand, a table lifter 52 actuates to move upward the tank 50 which is disposed in the first stop position and is filled with binders so that the pattern 16 is dipped in the binders and the binders deposit on its circumference. After the specified time, the tank 50 lowers and the cylinder 45 actuates to leave the friction roller 43 from the barrel body 10. The pattern 16 then stops revolving. Thence, the conveyor device 1 is driven to move the pattern 16 by the specified amount. When it stops, the cylinder 45 actuates to revolve the pattern in the same manner as above and at the same time the tank 51 filled with sand rises so that the pattern 16 is dipped therein and the sand deposits evenly thereon. After this, this process is repeated. |
