Distribution Machine Cover Sealing Strip Design
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Solution Overview
Problem
Existing distribution machines face challenges in maintaining a reliable seal against moisture and dirt, particularly when handling hygroscopic materials like fertilizers and road salt, which can clump and adhere to container walls, and in preventing material from falling out during operation, leading to operational issues and safety concerns.
Innovation Solution
A foldable cover system with a sealing strip attached to the container, featuring a first leg parallel to the container's outside, a second leg overlapping the interior, and an optional third leg for additional protection, ensures a tight and secure attachment of the tarpaulin, preventing moisture and material loss, and is designed for both manual and motorized actuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a flexible cover tarpaulin is used to cover the container, then the container is protected against moisture and dirt, but the tarpaulin may detach or fail to provide a reliable seal
Solution Approach 1:
A sealing strip is introduced as an intermediary element between the tarpaulin and the container. The sealing strip has a first leg that contacts the outer side of the container and an outer side to which the tarpaulin is attached, creating a reliable connection that ensures both protection and reliability
Solution Approach 2:
The sealing strip is divided into multiple legs (first leg extending parallel to the container outside, second leg overlapping the upper end face extending toward the interior, and optionally a third leg extending upward). This segmentation allows each leg to perform a specific function: the first leg provides the attachment surface for the tarpaulin, the second leg prevents material from falling out, and the third leg provides additional protection
2Loss of substance
If the tarpaulin is tightly attached to prevent material loss, then material containment is improved, but assembly and disassembly become difficult
Solution Approach 1:
The sealing strip is designed to be detachably attached to the container, allowing it to be dynamically assembled and disassembled. The detachable nature of the sealing strip connection enables easy operation during maintenance while maintaining tight attachment during operation to prevent material loss
3Device complexity
If a simple cover system is used, then device complexity is reduced, but protection against moisture and material loss is insufficient
Solution Approach 1:
The sealing strip serves multiple functions simultaneously: it provides a mounting surface for the tarpaulin (first leg), prevents material from falling out (second leg), and can provide additional protection (third leg). This multi-functionality allows a relatively simple structure to address multiple protection requirements without significantly increasing complexity
Data Source
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AI summary
A distribution machine is proposed with a container (2) which has a cover (3) that can be opened and closed about a pivot axis and which includes a support frame (4) with a flexible cover (15) attached thereto. For the purpose of ensuring a high degree of tightness of the cover when closed, the cover is detachably fastened to at least one side of the container by means of a sealing strip (16) in the upper edge region of the container. The cross-section of the sealing strip has: a first leg (16a) extending parallel to the outside of the container, the inner side of which rests against the outside of the container and to the outer side of which the cover is attached; a second leg (16b) that overlaps the upper end face of the container and extends towards the interior of the container; and/or a third leg (16c) that extends upwards away from the container.