Booklet Making Apparatus Odd Page Formation Without Waste
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Solution Overview
Problem
Existing methods for making booklets from a printed web of paper often result in uneven sheets during transport, leading to paper jams and waste, particularly when trying to create booklets with an odd number of pages, as they require unnecessary sheets to achieve evenness.
Innovation Solution
A method involving cutting a web of paper into first and second continuous sheets, bonding them edge-to-edge with different types of paste, cutting into split double sheets, and then bonding these sheets to form booklets with either an odd or even number of pages without waste, using a specific apparatus with cutting, truing-up, pasting, and trimming units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If split sheets are transported one by one from a continuous sheet, then the sheets lack firmness and deviate in position, but this method allows flexible booklet formation
Solution Approach 1:
The patent merges two continuous sheets together to form a double sheet structure. This combination provides mutual support between sheets, preventing individual sheets from deviating during transport while maintaining the flexibility needed for various booklet configurations.
Solution Approach 2:
The sheets are preliminarily bonded together at their side edges before transport. This preliminary bonding action creates a stable double sheet structure that maintains position stability during transport, while the bonding can be selectively removed later to enable flexible booklet formation.
2Reliability
If double continuous sheets are used to form booklets, then position evenness improves and jams reduce, but booklets must have an even number of leaves causing paper waste
Solution Approach 1:
The patent segments the double continuous sheet into individual sheets at designated separation lines. This segmentation allows the double sheet structure to be divided into odd-numbered booklets by separating sheets at appropriate positions, eliminating the need to include unnecessary sheets and preventing paper waste.
Solution Approach 2:
The patent uses a removable bonding mechanism that allows sheets to be discarded from the double sheet structure at specific separation points. Sheets that would otherwise be waste can be recovered and used in subsequent booklets, reducing overall paper consumption.
3Adaptability or versatility
If sheets are transported individually, then booklet flexibility is maintained, but sheets deviate in position and cause paper jams
Solution Approach 1:
The patent combines multiple sheets into a double sheet structure during transport to prevent deviation and paper jams. The merged structure provides stability while allowing flexible booklet configuration through selective separation at bonding lines.
Solution Approach 2:
The bonding paste acts as an intermediary that temporarily holds sheets together during transport. This intermediary bonding prevents harmful deviations and jams, while allowing sheets to be easily separated later for flexible booklet assembly.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures sheets are transported firmly and evenly, reducing paper jams and allowing for the creation of booklets with either an odd or even number of pages without unnecessary paper usage.
Implementation Method 1
bonding them edge-to-edge with different types of paste
Data Source
AI summary
A booklet making method includes: cutting a web of paper on one side and on another side into first and second continuous sheets, alternately bonding the first and second continuous sheets widthwise with a setting paste and a throwaway paste to form a double set continuous sheet of paper, and cutting the double set continuous sheet of paper into split double sheets of a selected longitudinal length. A plurality of split double sheets is integrally bound with an integrating paste to form a booklet-like product. Portions of the booklet-like product which are pasted and bonded with the throwaway paste are cut off to provide a plurality of booklets. Thus, by the booklet making method, booklets having an odd number of leaves or pages are formed without waste of paper and with reduced paper jams.