Tear-Off Lid Production Layout for One-Side Maintenance Access
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Solution Overview
Problem
Existing devices for producing tear-open lids have poor accessibility for maintenance work, requiring machines to be accessible from both sides, which complicates maintenance and increases operational challenges.
Innovation Solution
A device with a conveyor system and processing stations where lifting tables and yoke guides are arranged on one side of the processing zone, allowing for improved accessibility and enabling easier maintenance and control, with common lifting table yoke guides and a T-shaped machine frame for streamlined assembly and installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If lifting tables and yoke guides are arranged on both sides of the processing zone, then the machine structure is balanced and stable, but maintenance accessibility is poor and operational complexity increases
Solution Approach 1:
The patent applies asymmetry by arranging lifting tables and yoke guides exclusively on one side of the processing zone rather than symmetrically on both sides. This asymmetric configuration creates clear accessibility space for maintenance operations while reducing structural complexity. The one-sided arrangement allows maintenance personnel to access all lifting mechanisms from a single side, eliminating the need to work around obstacles on both sides of the machine.
Solution Approach 2:
The patent relocates lifting tables and yoke guides to be positioned in an area adjacent to the processing zone rather than integrated within it. This spatial reorganization creates a separate maintenance access dimension, allowing operators to service the lifting mechanisms without interfering with the processing zone. The lifting infrastructure is effectively moved to a peripheral dimension that provides unobstructed access while maintaining functional integration.
2Ease of operation
If lifting tables are positioned within the processing zone, then manufacturing precision is maintained, but maintenance accessibility deteriorates
Solution Approach 1:
The patent segments the machine into distinct functional zones: a processing zone for manufacturing operations and an adjacent area for lifting table and yoke guide placement. This segmentation allows the lifting infrastructure to be positioned outside the critical processing zone, providing excellent maintenance accessibility while maintaining manufacturing precision. The separation ensures that maintenance activities on lifting mechanisms do not interfere with processing operations or compromise precision.
Solution Approach 2:
The patent introduces an intermediary spatial zone between the processing zone and the machine periphery where lifting tables and yoke guides are positioned. This intermediary area serves as a buffer that provides maintenance access without directly interfering with the processing zone. The lifting mechanisms operate through this intermediary space, maintaining their functional relationship with the processing zone while allowing unobstructed maintenance access from the adjacent area.
3Adaptability or versatility
If machines are designed to be accessible from both sides, then operational flexibility is improved, but maintenance complexity and time increase
Solution Approach 1:
The patent employs asymmetric design by concentrating all lifting table and yoke guide components on one side of the machine, creating a dedicated maintenance access side. This asymmetric arrangement maintains operational flexibility through the conveyor system's ability to process lids continuously, while dramatically reducing maintenance time by allowing all lifting mechanism servicing to be performed from a single accessible side without needing to access both sides of the machine.
Data Source
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AI summary
The invention relates to an apparatus (1) for producing tear-off lids (27), in which a tear-off film (24) on the upper side of said lid is sealed or adhesively bonded on a sealing face (18) arranged around a removal opening (17). The apparatus comprises a conveying device (13) for lid blanks (9), lid rings (8), and tear-off lids (27) and processing stations (14, 19, 21, 25, 26, 29), which are provided successively in the conveying direction to process the lid blanks (9), lid rings (8) and tear-off lids (27) and form a processing zone of the apparatus (1) extending in the conveying direction. At least some of the processing stations (14, 19, 21, 25, 26, 29) have a lifting table (5) for receiving lower processing tools, and said lifting tables in normal operation of the apparatus (1) perform an intermittent upward and downward movement along lifting-table guides (6) and at the same time, with the lower processing tools, work from below against associated upper processing tools, which are supported on fixed yokes (4). According to the invention, the lifting-table guides (6), as seen in the conveying direction, are arranged in a region next to the processing zone of the apparatus, more specifically on precisely one of two sides of the processing zone. The region on the other side of the processing zone hereby remains unobstructed to the greatest possible extent, resulting in excellent accessibility to the processing zone for monitoring purposes and maintenance work.