Simultaneous Separation of Printing Plates and Slip-Sheets
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Solution Overview
Problem
The automation of printing plate handling in CTP systems is hindered by the delicacy of modifiable surfaces, leading to defects and inefficiencies in slip-sheet removal and storage, as conventional methods often result in sequential picking and removal of printing plates and slip-sheets, which increase throughput times and system complexity.
Innovation Solution
A method and apparatus for simultaneously separating an image recordable material from a media stack that includes a plurality of image recordable materials and slip-sheets, where a portion of the slip-sheet is moved to expose the image recordable material, and both are gripped and separated together, with the slip-sheet being stored separately for disposal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If sequential picking and removal of printing plates and slip-sheets is used, then handling simplicity is maintained, but throughput time increases and productivity decreases
Solution Approach 1:
The patent combines the picking of printing plates and slip-sheets into a single simultaneous operation using an integrated picking assembly that can grasp both materials together, eliminating the sequential handling steps and reducing throughput time while maintaining operational simplicity through unified control
2Device complexity
If conventional slip-sheet removal methods are used, then system complexity is reduced, but reliability decreases due to multiple plate picks and system errors
Solution Approach 1:
The patent introduces a movable separation plate as an intermediary element between the picking assembly and the media stack that actively separates slip-sheets from printing plates during the picking process, preventing multiple plate picks and system errors while adding minimal complexity through a single mechanical component
3Manufacturing precision
If slip-sheets are removed and stored separately, then handling precision is improved, but device complexity increases due to additional storage mechanisms
Solution Approach 1:
The patent combines the separation and storage functions into a single integrated operation where the movable separation plate simultaneously separates slip-sheets from printing plates and directs them to appropriate locations, eliminating the need for separate storage mechanisms and reducing overall device complexity
Data Source
AI summary
The present invention provides methods and apparatus for separating an image recordable material from a stack of slip-sheets and printing plates. A slip-sheet separates each of the image recordable materials from one another in the media stack and is moved to expose the portion of the image recordable material. The image recordable material and the slip-sheet are gripped and the image recordable material is separated from the stack while being contacted by the slip-sheet.