Narrow Roll Handling via Axial Transfer and Overlapping Slitters
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Solution Overview
Problem
The handling of narrow rolls, particularly self-adhesive laminate rolls, is challenging due to their varying widths, diameters, and lengths, which complicates storage and transportation, and existing methods fail to maintain the axial direction during transfer, leading to potential damage and inefficiencies in warehouse operations.
Innovation Solution
The method involves forming narrow rolls from a jumbo reel using overlapping slitting machines that maintain the axial direction during processing and transfer, with product marking steps for adding general and customer information, and utilizing carrier tables to feed rolls into a flow-through warehouse without turning, ensuring consistent unwinding direction and efficient storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If narrow rolls are transferred in the axial direction using conventional methods, then transfer efficiency is improved, but roll damage increases due to loss of axial direction control
Solution Approach 1:
The patent introduces a new spatial dimension for transfer by maintaining the axial direction throughout the transfer process. Instead of conventional radial or random orientation transfers, the narrow rolls are kept in axial orientation from slitting machine through carrier table to warehouse, adding directional control as a critical dimension to the transfer operation.
Solution Approach 2:
The carrier table serves as an intermediary device between the slitting machine and the warehouse. It specifically maintains the axial direction of narrow rolls during transfer, acting as a mediator that preserves the directional orientation and prevents roll damage while enabling efficient transfer.
2Area of stationary object
If slitting machines are positioned overlapping to optimize space, then warehouse space utilization is improved, but device complexity increases
Solution Approach 1:
The patent utilizes the axial direction dimension to position slitting machines overlappingly. By transferring rolls in the axial direction rather than requiring lateral spacing, multiple slitting machines can be arranged in an overlapping configuration that optimizes floor space while maintaining operational independence.
Solution Approach 2:
The carrier table merges the transfer function for multiple slitting machines into a single unified system. It handles rolls from multiple overlapping machines simultaneously, consolidating the transfer operation and simplifying the overall arrangement despite the complex machine positioning.
3Adaptability or versatility
If product marking is added in multiple steps with customer information, then customization capability is improved, but processing time increases
Solution Approach 1:
The patent applies preliminary action by adding general product information marking at the first information adding step immediately after slitting. This preliminary marking establishes a base that can be quickly customized later with customer information, reducing the time required for final customization.
Solution Approach 2:
The marking process is segmented into two distinct steps: first adding general product information that applies to all rolls, then adding customer-specific information in a second step. This segmentation allows parallel processing and reduces overall time compared to adding all information sequentially in a single step.
Data Source
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AI summary
The invention relates to an arrangement in a warehouse (15) and a method for forming narrow rolls (2). The narrow rolls are formed from a jumbo reel (3). At least two slitting machines (1) are used for forming the narrow rolls (2). The jumbo reel (3) has an axial direction when positioned on the slitting machine (1). The narrow rolls (2) are transferred to the warehouse (15) in the axial direction. The at least two slitting machines (1) are positioned overlapping.