| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent a state of inclining in fish tail shape by accurately straightening the formed position of a fold in a connection part of a corrugated cardboard sheet into a desired position. <P>SOLUTION: Gage rolls 120L, 120R are arranged at a predetermined guide space GDW to guide and regulate the connection parts of first and fourth panels P1, P4. Straightening rolls 220L, 220R can approach and separate from each other, and a space CLW in the approach state is smaller than the predetermined guide space GDW. When a tip detector 42 detects the passage of the corrugated cardboard sheet and generates a detection signal, a folder gluer control device 1200 determines the approach timing of both straightening rolls based on the generation of the detection signal after both panels are bent at 90° and before both panels are bent at 180°, and determines the separation timing of both straightening rolls according to the predetermined depth dimension CNL of the connection parts. Both straightening rolls press the connection parts between the approach timing and separation timing. <P>COPYRIGHT: (C)2010,JPO&INPIT |
