GRA 420 Midterm: GRA420_Midterm_Review

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Topic 1: case binding pi / loose leaf industry. >signatures are on top of another in the right order (not saddle-stitching b/c that requires inserted. >signatures are put in a pocket that can contain 1-5 sig. (requires a lot of ppl. >no lip required because sig. doesn"t need to be opened. >can be part of a workflow after delivery (i. e. , 3 line trimmer) or can be stand-alone (can be expanded) >quality control: binder"s marks are read in collating machine so that signatures are in the right order. Feeds from the bottom of the pile (more effici- ent b/c it"s being drop- ped therefore, product- ion never has to stop) Variants: pincer gripper puts sheet on conveyor belt/raceway (precise, gripper drum (faster) Pile support(pincer) and tilt-up sucker (drum) helps separate signatures using a lever that makes sure that only 1 signature gets on the pincer/drum gripper aligns signatures up part of registration. >glues book & applies gauze/super on block for reinfocement.

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