Three-side trimmer

Details Three-side trimmer Three-side trimmer

2006-07-18

2006-07-18

Peterson, Kenneth E. (Department: 3724)

Cutting

With work immobilizer

Means to clamp work

C083S530000, C083S934000

Reexamination Certificate

active

07077042

ABSTRACT:
The three-side trimmer comprises an alignment station (F) for receiving booklet bundle (32) and aligning the booklets, and a cutting station (D) for cutting the top, bottom and fore edges of the bundle, and a chuck mechanism (40) which holds the bundle and conveys it to the cutting station. The cutting station has a cutting table (23), a top edge cutting knife (43), a bottom edge cutting knife (44), a fore edge cutting knife42, and a pressing plate48movable between a waiting position and a working position. An encoder reads the data about the rotational position of the servomotor (38) in the chuck mechanism while it holds the booklet bundle. The control portion (25) measures the height of the bundle and controls a driving mechanism of the pressing plate such that the pressing plate moves up and down between waiting and working positions.

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