Corrugated Cardboard Bridge Storage and Defect Removal System
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Solution Overview
Problem
In corrugated cardboard production lines, single-sided laminated corrugated cardboard webs are folded on a bridge, leading to splicing errors and rejects that cannot be conveniently and timely removed, affecting productivity.
Innovation Solution
A device comprising a conveyor system with a clamping and cutting unit, a movable cardboard storage carriage unit, and a conveyor belt system with a changeable direction, along with a waste cardboard collecting carriage, allows for the storage and removal of defective cardboard, preventing further transportation and cutting out defective pieces for disposal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a bridge is used to store corrugated cardboard web in a production line, then storage capacity is improved, but rejects and defective pieces cannot be removed timely
Solution Approach 1:
The bridge storage area is segmented into multiple zones: a first conveying area for normal cardboard web transport, and a second conveying area for defective piece removal. A separating plate divides these areas, allowing independent operation of each zone. This segmentation enables simultaneous storage function and targeted defect removal without disrupting overall production flow.
Solution Approach 2:
A movable separating plate acts as an intermediary element between the first conveying area and the second conveying area. This plate can be adjusted to control the flow of cardboard web, directing defective pieces to the removal area while maintaining normal transport in the storage area. The intermediary mechanism enables flexible routing without stopping production.
2Quantity of substance
If cardboard web is folded on the bridge, then storage is achieved, but splicing errors occur and productivity decreases
Solution Approach 1:
The bridge conveyor system employs dynamic, movable components including adjustable guide rolls and a movable separating plate. These dynamic elements can be repositioned based on production needs, allowing the system to adapt to different cardboard web conditions and prevent folding-induced splicing errors while maintaining storage capacity.
Solution Approach 2:
The system performs preliminary separation of defective pieces from the main cardboard web before they can cause splicing errors. The movable separating plate and second conveying area enable early identification and removal of problematic sections, preventing them from reaching splicing points where they could compromise manufacturing precision.
3Device complexity
If a conventional bridge storage system is used, then simple structure is maintained, but defect removal is inconvenient and slow
Solution Approach 1:
The bridge structure is designed with multi-functionality, serving both as a storage area and as a defect removal system. The first conveying area maintains the storage function, while the second conveying area provides automated defect removal capability. This universal design eliminates the need for separate storage and removal systems, maintaining structural simplicity while enhancing operational ease.
Solution Approach 2:
The defect removal system operates autonomously through the movable separating plate and second conveying area, which automatically identify and transport defective pieces to the removal zone without requiring manual intervention. This self-service mechanism simplifies operation while maintaining structural efficiency.
Data Source
AI summary
A device for cardboard storage and removal for a bridge in a corrugated cardboard production line includes a bridge over which a conveyor system for conveying the single-sided laminated corrugated cardboard web is arranged. The exit end of the conveyor system for conveying the single-sided laminated corrugated cardboard web is provided with a clamping and cutting unit and a movable cardboard storage carriage unit is provided under the conveyor system for conveying the single-sided laminated corrugated cardboard web, under which conveyor system a conveyor belt system is provided in the bridge, and in the bridge an opening is provided, under which a waste cardboard collecting carriage is provided. The movable cardboard storage carriage unit stores the cardboard by means of cardboard storage rolls, which retain the single-sided laminated corrugated cardboard web flat on the bridge. In the event that a splicing defect is detected, the defective piece is cut out by the clamping and cutting unit and ejected by the conveyor belt system to the waste cardboard collecting carriage through the opening. Hence, it follows that productivity is improved.