Discharge Belt Tensioning Roller for Lateral Drift Control
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Solution Overview
Problem
Conveyor belts in palletizing devices experience lateral drift during operation, which can lead to goods falling over, especially when the length of the conveying surface is approximately equal to its width, and existing solutions do not effectively control the belt edges without altering the conveying surface.
Innovation Solution
A settling belt with a tensioning roller movable in a tensioning direction and a second deflection roller parallel to the first rotation axis, allowing the tensioning axis to be angled to correct lateral drift by pivoting the tensioning roller, maintained within a rectangular conveying surface, using servomotors and sensors for precise edge control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional conveyor belt system is used without active belt edge control, then the structure remains simple, but lateral drift occurs causing goods to fall over
Solution Approach 1:
The patent implements a feedback control system where sensors detect the actual position of the conveyor belt edges and this information is fed back to a control unit. The control unit compares the detected position with the desired position and automatically adjusts the tensioning roller position to correct any lateral drift, thereby preventing goods from falling over while maintaining a relatively simple overall structure.
Solution Approach 2:
The belt edge control system operates autonomously by automatically detecting belt position deviations and correcting them without requiring manual intervention. The system self-regulates the conveyor belt alignment through automated adjustment of the tensioning roller, reducing the need for external control mechanisms.
2Stability of the object's composition
If the tensioning roller is fixed perpendicular to the conveying direction, then the structure is simple, but the conveying surface may drift laterally during operation
Solution Approach 1:
The patent transforms the static tensioning roller into a dynamic component that can change its position and orientation. The tensioning roller is mounted on a movable support structure that allows it to shift laterally and rotate about its axis, enabling the conveying surface to adapt to and correct lateral drift while maintaining stability during operation.
Solution Approach 2:
The patent introduces asymmetric positioning capabilities for the tensioning roller, allowing it to be positioned at different lateral locations and orientations. This asymmetric adjustability enables the system to compensate for lateral drift in various directions, providing both stability and adaptability to different operational conditions.
3Manufacturing precision
If the tensioning roller is made adjustable to correct lateral drift, then belt alignment improves, but the conveying surface shape may be altered
Solution Approach 1:
The patent applies local quality adjustment by allowing only specific portions of the conveyor belt system (the tensioning roller and its support structure) to be adjustable, while the main conveying surface maintains its fixed geometry. This localized adjustability enables precise belt alignment correction without altering the overall shape and dimensions of the conveying surface.
Solution Approach 2:
The patent segments the conveyor belt system into fixed and adjustable components. The conveying surface and its support structure remain fixed to maintain geometric integrity, while the tensioning roller and its mounting mechanism are segmented as separate adjustable units that can be positioned independently to correct lateral drift without affecting the overall conveying surface shape.
Data Source
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AI summary
The invention relates to a discharge belt (50) for a palletising device (10), comprising a continuous conveyor belt (52) defining a transport surface (53) for the transport of goods, a first deflection pulley (61) that can be rotated about an axis of rotation (71), and a take-up pulley (65) that can be rotated about a take-up axis (75) and moved in a take-up direction (S). A second deflection pulley (62) is also provided, which can be rotated about a second axis of rotation (72), wherein the second axis of rotation (72) runs parallel to the first axis of rotation (71). The take-up pulley (65) can be moved in such a way that the take-up axis (75) is inclined in relation to the first axis of rotation (71) and inclined in relation to the second axis of rotation (72). The invention also relates to a palletising device (10) comprising at least one discharge belt (50) according to the invention.