Horizon International Inc.

Shinya Watanabe

Tatsuaki Ida

Hiroki Yamamoto

Takehito Yokogi

Yoshikazu Nakamura

Tsuyoshi Matsumoto

Friedhelm Pfeiffer

A scoring machine incorporated in a sheet folding apparatus forms scores on sheets according to a folding pattern. The scoring machine comprises upper and lower rotary shafts provided with pairs of convex and concave rollers, and a positioning unit slidably attached to a slide guide. When a rotatable member is arranged at a standing position, the convex roller engages with a groove on one end face of the rotatable member, or the concave roller engages with a projection on the other end face of the rotatable member. A sequence pattern of the pairs of convex and concave rollers on the upper and lower rotary shafts corresponding to the folding pattern is displayed on a display. The positioning unit stops at the specified positions of the pairs of convex and concave rollers while sliding.

Scoring machine

A knife folding machine comprises: a support surface () for supporting a lower surface of a sheet (S); a knife blade (); a pair of folding rollers () opposed to the knife blade () at a fold position with the support surface () therebetween. The knife blade () is reciprocated between first and second positions by a knife drive unit. The first position is away from an upper surface of the support surface, and the second position is adjacent a gap between the folding rollers. The reciprocal movement of the knife blade () effects a folding operation every time the sheet (S) is set at the fold position. The sheet (S) is conveyed to the fold position by the conveyer belt (). The conveyer belt () is driven by a first servomotor (). The control unit () controls the rotation of the first servomotor () so as to decelerate the sheet (S) before its abutment against the stopper () without its rebounding against the stopper ().

Knife folding machine

A paper folding device is configured so that a folding line is always formed at a predetermined position of paper sheets. A paper supply section is provided with a conveyor belt for conveying paper sheets (P) sequentially supplied from a paper sheet stack. A guide plate () for aligning the positions of the conveyed paper sheets is provided on a conveying surface of the conveyor belt. A paper folding section has a buckle () comprising an outer frame () and bars () which extend between opposite sides () of the outer frame and are arranged at intervals from each other. Paper sheet introducing gaps extended in the direction of the length of the bars are provided in the buckle. Before the start of paper folding operation, a control section calculates and processes data relating to the size of paper sheets and data relating to the position of the bars, so that the distance to the guide plate from a reference point in the direction perpendicular to the conveying direction (R) is set to a value with which a side edge of each paper sheet introduced into the paper sheet introducing gaps in the buckle is separated by a distance not less than a predetermined level from a side edge of a bar located closest to the side edge of the paper sheet. Then, the control section sets the position of the guide plate according to the set value.

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Shiga, Japan

Shinya Watanabe