| 摘要 |
A ventilation apparatus of a mold in a vacuum molding machine is provided to separate moldings from a surface of the mold by installing a ventilation member to flow air flowed from a ventilation unit into an upper part of the mold. A ventilation apparatus of a mold in a vacuum molding machine comprises the followings: a ventilation unit(11) flowing air on one side of the mold; a ventilation member(10) having a mold through-hole(12); an on-off valve(21) opened and closed, installed on an end part of the unit; a sensing unit(22) sensing a lowering of the mold; and an opening and closing member(20) forming a control unit(23) transmitting the drive of the on-off valve according to an input signal of the sensing unit.
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