| 摘要 |
The milling apparatus ( 10 ) is arranged in such a manner that the deep groove cutter ( 21 ) is attached to the milling cutter ( 20 ) and the rotational drive shaft ( 23 a) is approximately orthogonal to a spine ( 16 a) of a sheet bundle ( 16 ) by the mechanism for tilting the drive apparatus ( 24 ) when an EVA-based hot melt adhesive is used. The milling apparatus ( 10 ) is arranged in such a manner that the shallow cutter ( 22 ) is attached to the milling cutter ( 20 ) and the rotational drive shaft ( 23 a) is tilted with respect to a conveying direction of the sheet bundle ( 16 ) by the mechanism for tilting the drive apparatus ( 24 ) when a PUR-based holt melt adhesive is used.
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