| 摘要 |
PURPOSE:To prevent generation of curing reaction due to local heating by a method wherein the tablet resin of an amount, necessary for one molding cycle or more, is heated sequentially to supply the tablet resin into a mold in each cycle after preheating uniformly. CONSTITUTION:One piece of tablet resin is thrown into a preheating device by a feeder through receiving ports 11 in respective rows one by one at predetermined times. The tablet resin, thrown into the device, is guided by guides 21 and is piled sequentially. The tablet are heated by the convection of heating air so that the tablet in lower side is heated to the highest temperature and the same in the upper side is heated to a lower temperature. The tablet at the lowermost stage is transferred to the mold by the effect of a cylinder 26 in every pouring cycle of supplying the tablet resin by a pushing the second tablet resin from the lowest stage from the lateral direction thereof while the temperature thereof is controlled using a temperature adjusting meter so as to obtain a constant temperature. |
