Sheet Feeding Device Guide Mechanism for Roll Handling
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Solution Overview
Problem
Existing sheet feeding devices require significant labor to attach heavy roll sheets due to the need for manual lifting and placement, which can be cumbersome and labor-intensive, especially when handling large or heavily wound sheets.
Innovation Solution
A sheet feeding device with a holder portion and guide portions that allow the roll sheet to be rotated and fed into position, creating a gap for a carrier to easily move the sheet into place without the need for manual lifting, improving workability and reducing labor requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a pivot door portion is provided throughout the entire region of the sheet feeding device to allow workers to attach roll sheets, then the attachability of roll sheets is ensured, but heavy labor is required when moving heavy roll sheets from the carrier to the pivot door portion
Solution Approach 1:
The patent introduces a vertical dimension by providing a guide portion that extends downward from the holder portion. This allows the carrier to approach the holder from below, enabling workers to move roll sheets horizontally onto the carrier and then vertically guided into position, rather than requiring direct horizontal placement at pivot door level. This dimensional change eliminates the need for manual lifting while maintaining attachability.
Solution Approach 2:
The guide portion acts as an intermediary structure between the carrier and the holder portion. It provides a transitional path that receives the roll sheet from the carrier and guides it into the holder, mediating the transfer process and eliminating the need for workers to directly lift and place heavy roll sheets at the pivot door level.
2Quantity of substance
If the roll sheet is made large or wound many times to increase sheet capacity, then the sheet feeding capability is improved, but the weight of the roll sheet increases requiring a carrier
Solution Approach 1:
The system is segmented into three distinct components: the carrier that holds the heavy roll sheet, the guide portion that transfers it, and the holder portion that stores it. This segmentation allows each component to be optimized independently - the carrier can be designed for easy mobility, the guide for smooth transition, and the holder for stable storage, collectively solving the problem of handling heavy, high-capacity roll sheets.
Solution Approach 2:
The guide portion is positioned to create a level transition path between the carrier and holder portion. By aligning the heights and creating a smooth gravitational transition, the system minimizes the additional force required beyond the roll sheet's weight, making handling easier while maintaining high sheet capacity.
3Manufacturing precision
If manual lifting is required to move the roll sheet to the pivot door portion, then the roll sheet can be positioned correctly, but the physical effort required increases significantly
Solution Approach 1:
The guide portion is designed to self-guide the roll sheet from the carrier to the holder portion through its geometric configuration. The tapered or angled surfaces of the guide automatically direct the roll sheet along the correct path and into the proper position without requiring manual manipulation or lifting, achieving both positioning accuracy and reduced physical effort.
Data Source
AI summary
A sheet feeding device that rotates a roll sheet supported by a holder portion to feed a sheet includes a holder portion that rotatably supports the roll sheet in which the sheet is wound, a first guide portion projecting from the holder portion in a projection direction corresponding to a front direction of the sheet feeding device, and a second guide portion facing the first guide portion and projecting from the holder portion in the projection direction to guide the roll sheet to the holder portion. In a gap between the first guide portion and the second guide portion and below the gap, a space that can be entered by a carrier that carries the roll sheet is formed.