Insert Placement in Printed Book Blocks
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Solution Overview
Problem
Existing methods for inserting supplements into printed book blocks, such as books and magazines, lack precision in positioning inserts between pages, leading to inaccuracies in placement and potential movement during the stacking process.
Innovation Solution
A device with multiple feeders arranged along a collecting line feeds printed products and inserts to regularly spaced receiving points on a continuously moving conveyor, allowing for precise placement of inserts between partial block stacks before they are collected and bound, using adhesives or electrostatic locking for secure positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If supplements are fed to printed sheets before stacking in a printing press, then inserts can be placed on sheets, but the supplements may move relative to the printed sheet during the stacking process
Solution Approach 1:
The supplement is connected to the printed sheet by means of connecting means (adhesive or electrostatic blocking) before the stacking process begins. This preliminary connection ensures that the supplement remains fixed to the printed sheet throughout the subsequent stacking operations, preventing any relative movement and ensuring precise insert placement in the final book block.
2Ease of operation
If book blocks are opened loosely or bound with a sword to feed inserts, then inserts can be inserted into the opening, but the printed products cannot be opened with exact page or sheet accuracy
Solution Approach 1:
Instead of opening book blocks to feed inserts later, the invention connects supplements to printed sheets before stacking. This preliminary connection eliminates the need to open book blocks during insert feeding, maintaining both operational ease and precise page positioning accuracy throughout the process.
Solution Approach 2:
The connecting means (adhesive or electrostatic blocking) acts as an intermediary that permanently attaches the supplement to the printed sheet. This intermediary connection ensures that inserts remain precisely positioned on the correct pages without requiring mechanical opening of the book blocks during the insertion process.
3Manufacturing precision
If multiple feeders are arranged along a collecting line to feed printed products and inserts, then synchronized feeding can be achieved, but the system complexity increases
Solution Approach 1:
The invention combines multiple feeders (printed product feeders and supplement feeders) along a single collecting line with regularly spaced receiving points. This merged system allows synchronized feeding of both printed products and inserts at predetermined positions, achieving precise insert placement while organizing the complexity into a coordinated linear arrangement.
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
Enables accurate and synchronized feeding of inserts between pages of printed products, ensuring precise placement and stability during the binding process, resulting in high-quality, accurately assembled book blocks.
Implementation Method 1
the supplement being able to lie on the sheet or sheet or be connected to it by means of connecting means, for example an adhesive or electrostatic blocking
Implementation Method 2
the supplement being able to lie on the sheet or sheet or be connected to it by means of connecting means, for example an adhesive or electrostatic blocking
Data Source
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AI summary
In a process for producing printed products such as book blocks, books, brochures, magazines, or the like, consisting of single- or multi-sheet printed products and inserted inserts (7, 8), the printed products and the inserts (7, 8) are selectively gathered on a collection track (14) to form loose book blocks (9). Several feeders (12) are arranged along the collection track (14), which feed the printed products at regular intervals to receiving points (15) of a continuously circulating conveyor (16). Sequentially printed printed products are fed to the receiving points (15) of the conveyor (16) along the collection track (14) as single sheets and/or partial block stacks (4, 5, 6) via at least one feeder (12) connected to a digital printing press (1).