Screw-Thread Drive for Stable Packaging Tray Conveyance
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Solution Overview
Problem
Existing methods for conveying and providing packaging trays lack stability and precision in maintaining desired spacing and orientation during transport, leading to potential slippage and lateral deviation.
Innovation Solution
A method and device utilizing a guide channel and a drive element with a screw thread to convey packaging trays, ensuring stable movement along a transport direction by engaging with the drive element, preventing lateral deviation, and maintaining consistent spacing through a helical design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If packaging trays are conveyed using traditional belt conveyors without screw threads, then the structure is simple, but the trays experience lateral deviation and slippage during transport
Solution Approach 1:
The drive element is segmented into multiple screw threads arranged along the transport direction, with each thread engaging separate packaging trays. This segmentation allows independent engagement of each tray while maintaining overall system simplicity, preventing slippage through distributed mechanical engagement points.
Solution Approach 2:
The screw threads are nested within the guide channel structure, with the drive element positioned inside the channel. This nesting integrates the driving mechanism into the guiding structure, preventing lateral deviation while avoiding additional external complexity.
2Manufacturing precision
If packaging trays are conveyed without guide channels, then the device is simpler, but the trays deviate laterally from the transport direction
Solution Approach 1:
The guide channel and drive element are merged into an integrated assembly where the screw threads are positioned within the channel. This combination simultaneously provides guiding function (preventing lateral deviation) and driving function (through screw thread engagement), achieving precision without proportional complexity increase.
3Manufacturing precision
If the screw thread pitch is increased to reduce the number of threads, then the drive element is simpler, but the spacing between conveyed trays becomes less controllable
Solution Approach 1:
The screw thread pitch is precisely controlled as a key parameter to determine tray spacing. By optimizing the pitch value, the system achieves reliable spacing control without requiring excessive numbers of threads, balancing precision with structural simplicity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures stable and precise conveyance of packaging trays with controlled spacing and orientation, preventing slippage and lateral movement, facilitating efficient power transmission and reliable positioning for subsequent processing.
Implementation Method 1
The packaging trays are conveyed along the transport direction by rotating a drive element by means of a drive. The packaging trays are received in a screw thread of the drive element.
Data Source
Figure 1~2
Figure 3~4
Figure 5A~5C
AI summary
A method for providing packaging trays (3) comprises guiding packaging trays (3) along a transport direction (15) in a guide channel (29). The packaging trays (3) received in the guide channel (29) are conveyed along the transport direction (15) by rotating a drive element (37) by means of a drive (41). The packaging trays (3) are received in a screw thread (39) of the drive element (37).