Browse Prior Art Database

Methods for Controlling Feeders on a Bindery Line

IP.com Disclosure Number: IPCOM000104499D
Original Publication Date: 1993-Apr-01
Included in the Prior Art Database: 2005-Mar-19
Document File: 1 page(s) / 68K

Publishing Venue

IBM

Related People

Colson, JC: AUTHOR [+3]

Abstract

Disclosed is a computer program for controlling pocket feeders on a bindery line. These pocket feeders are used to place signatures of a magazine or book onto conveyor. In addition, covers for the magazines or books are placed onto the conveyor with a similar type of feeder.

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This is the abbreviated version, containing approximately 52% of the total text.

Methods for Controlling Feeders on a Bindery Line

      Disclosed is a computer program for controlling pocket feeders
on a bindery line.  These pocket feeders are used to place signatures
of a magazine or book onto conveyor.  In addition, covers for the
magazines or books are placed onto the conveyor with a similar type
of feeder.

      In order to control the action of the pocket feeder, the
correct timing of the pocket must be known.  This information is
obtained by automatically calibrating the pocket, or by timing the
pocket manually.  Once this timing is known, it may be saved and
restored via configura- tion information received from the host
controller.

      When control begins, all pockets are initially inhibited.  A
task is started in the system that monitors the motion of the line.
Whenever the position of the line passes the calibrated point of a
pocket, a function is called to determine if the pocket should feed
or not.

      The determining function examines the book in the conveyor slot
at an appropriate distance ahead of the feeder.  If this book has a
makeup code that requires the pocket, and does not already have an
error, the pocket is actived.  Otherwise, it is inhibited.

      Another task is run to monitor errors from pockets.  This task
waits on the activation of an input point that signals a missing page
or a doubled page.  When observed, the task checks the appropriate
books makeupcode and error information.  If the error was indeed a
true error, the book's error information is updated.  This
information will cause downstream pockets to be inhibited.  In a
demographic system, if a signa...