Pivoting Roll Trolley for Angled Extraction
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Solution Overview
Problem
Existing systems for replacing large and heavy rolls of flexible materials in industrial machines, such as painting and printing plants, require significant space, labor, and time, and often involve complex and costly devices for handling and supporting these rolls during changes.
Innovation Solution
A roll-supporting trolley with a pivoting assembly that allows angled extraction and replacement of rolls, eliminating the need for extensive space near the machine and enabling remote roll mounting and unmounting, while performing both transport and support functions without electric or pneumatic consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional roll handling systems are used, then rolls can be supported and conveyed, but significant space near the machine is required and complex costly devices are needed
Solution Approach 1:
The system divides the roll handling function into two independent components: a passive trolley for support and transport, and an active pivoting assembly for positioning. This segmentation allows each component to be optimized independently, reducing overall system complexity while maintaining full functionality.
Solution Approach 2:
The pivoting assembly acts as an intermediary mechanism between the fixed machine and the movable trolley. It enables the trolley to approach and position the roll at an angle, simplifying the handling operation without requiring complex coordinated movement from the trolley itself.
2Ease of operation
If traditional roll handling systems are used, then rolls can be replaced, but significant space near the machine is required
Solution Approach 1:
The system transitions from static, fixed-position roll handling to dynamic, multi-directional movement. The trolley can move freely on tracks, and the pivoting assembly enables angular approach, allowing roll replacement in a compact space footprint while maintaining operational ease.
Solution Approach 2:
The pivoting assembly introduces angular movement as an additional degree of freedom, allowing the trolley to approach the roll from oblique angles rather than only from the front. This dimensional change enables compact space utilization while simplifying the replacement operation.
3Area of stationary object
If remote roll mounting is enabled, then space near the machine is reduced, but additional conveying devices would be needed
Solution Approach 1:
The trolley is designed as a universal platform that performs both transport and support functions. Its passive design with simple wheel-track interaction enables it to move rolls remotely without requiring additional active conveying devices, reducing overall system complexity while achieving space reduction.
Solution Approach 2:
The trolley is a self-propelled, passive device that moves rolls using simple mechanical propulsion without requiring external power sources or complex control systems. This self-service capability enables remote mounting operations without adding conveying device complexity.
Data Source
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AI summary
System and method for supporting and conveying rolls of flexible basically flat material for supplying machines for industrial processing, said system comprising: a. a trolley (16), removable from the machine supplied by the roll itself, for the support of rolls, comprising: a shaft (17) to support said roll (14, 15), a frame (18), b. an active pivoting assembly (30), allowing the hooking of trolley (16) to the machine supplied by the trolley, aid assembly comprising a frame (31), a connecting flange (29), a rotating hub (34) and a connecting platform (35), characterized in that said trolley (16) becomes active through to the connection to electric and/or pneumatic supply, realized fastening said trolley (16) to said pivoting assembly (30) and to said connecting flange (29). Method for replacing rolls (14, 15) supplying machines for industrial processing, comprising a trolley (16) removable from the machine for the support of rolls, further comprising the following steps: a. interrupting the supplying of the flexible basically flat material to the machine supplied by the roll itself; said supplying occurs keeping trolley (16) shaft (17) in a given direction, generally perpendicular to the moving forward direction of the flexible basically flat material; characterized in that b. said trolley (16) is extracted from the machine firstly rotating it thanks to the rotating hub (34) and then sliding it within pivoting assembly (30); said extraction occurs forming an angle equal or smaller than 60° between said shaft (17) of trolley and shaft (17) direction during step a).