Cross-Belt Frame Top Cover With Detachable Locking Assembly
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Solution Overview
Problem
Existing top covers for loop sorters in conveyor systems are difficult to assemble due to the use of screws, buckles, and welding, which can break and increase assembly costs.
Innovation Solution
A top cover for a cross belt frame with detachable locking units, including a middle locking unit and end locking units that engage with slide rails and protrusions on the frame, allowing for easy installation and secure attachment without screws or welding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If sheet metal top covers with screws, buckles, and welding are used, then secure attachment is achieved, but assembly complexity and cost increase
Solution Approach 1:
The top cover is divided into multiple modular sections with integrated locking units at each segment. Each locking unit is self-contained and attaches to corresponding features on the crossbelt frame, allowing modular assembly without requiring complex fastening systems across the entire structure.
Solution Approach 2:
The locking units are integrated directly into the top cover body as unified components rather than separate fasteners. The locking features (protrusions, channels, hooks) are molded as part of the top cover structure, merging the cover and fastening mechanisms into a single piece.
2Ease of operation
If screws and buckles are used for assembly, then detachable attachment is achieved, but reliability decreases due to breaking fasteners
Solution Approach 1:
The locking units are designed to be self-locking through their geometric features. The protrusions engage with channels and hooks anchor around protrusions on the frame, creating self-sustaining connections that do not require additional fasteners or complex locking mechanisms that could fail.
Solution Approach 2:
The top cover is made from durable polyvinyl chloride (PVC) material that provides both structural integrity and resistance to breaking. The material properties ensure the integrated locking units maintain their strength and reliability under operational loads.
3Strength
If welding is used for assembly, then permanent secure attachment is achieved, but manufacturing cost increases
Solution Approach 1:
The welding process is replaced with a mechanical interlocking system using integrated locking units. The protrusions, channels, and hooks create secure mechanical connections that eliminate the need for welding operations, reducing manufacturing costs and assembly complexity.
Solution Approach 2:
The attachment method transitions from thermal process (welding) to mechanical engagement. By changing the fundamental attachment parameter from heat-based fusion to force-based interlocking, the system achieves secure attachment without the high costs and complexity of welding operations.
Data Source
Figure 1
Figure 2A~2B
Figure 3A
AI summary
A top cover for a cross belt frame is disclosed. The top cover defining a longitudinal direction, a transverse direction, and a vertical direction. The top cover comprising a main body extending along a plane defined by the longitudinal direction and the transverse direction. The main body having a middle portion positioned between two end portions. A middle locking unit extending from a bottom side of the middle portion of the main body, is configured to engage with a pair of slide rails of the cross belt frame. A first end locking unit extending from one of the two end portions, is configured to detachably engage with at least one protrusion that extends from the cross belt frame and a second end locking unit extending from another one of the two end portions, is configured to detachably engage with other protrusion that extends from the cross belt frame.