Tray Stacking Device with Cam Guide Unloading
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Solution Overview
Problem
Existing stacking devices for trays are complex and inefficient in terms of space usage, as they require multiple moving elements and extensive space for their operation, which complicates the stacking and unstacking process.
Innovation Solution
A stacking device with a vertical guide, a separating device, and a relief device featuring a holding element and drive device that moves between holding and release positions, utilizing a slotted guide and link mechanism to define the travel path and reduce space requirements, allowing for efficient unstacking and adaptation to different tray geometries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple moving elements and extensive space are used for the relief device, then the holding element can reliably hold and release the tray stack, but the space requirements and device complexity increase significantly
Solution Approach 1:
The holding element is moved between holding and release positions along a curved travel path defined by a cam guide, rather than moving strictly horizontally. This dimensional change in movement path allows the drive unit to be positioned more compactly and reduces the space required along the extension direction while maintaining reliable holding and releasing functions
Solution Approach 2:
The cam guide integrates multiple functions into a single component: it defines the travel path of the holding element, guides its movement, and enables the curved trajectory that reduces space requirements. This merging of guidance and motion control functions into one element simplifies the overall device structure and reduces the number of separate moving elements needed
2Adaptability or versatility
If multiple moving elements are used in the relief device, then the holding element can perform complex movements, but the device complexity increases
Solution Approach 1:
The cam guide acts as an intermediary element that translates the simple linear movement of the drive unit into the complex curved travel path required for the holding element. Instead of using multiple moving elements to achieve complex motion, the cam guide mediates between the simple drive unit motion and the required complex holding element trajectory, thereby reducing device complexity while maintaining adaptability
Data Source
Figure 1
Figure 2~4B
Figure 3A~3B
AI summary
The destacking device (1) for destacking trays from a tray stack (3) comprises a vertical guide (5) for receiving a tray stack (3), a separating device (9) configured for individually destacking the bottommost tray of a tray stack (3) received in the vertical guide (5), and a release device (13). The release device (13) comprises a holding element (15) and a drive device (19) configured to move the holding element (15) between a holding position, in which the holding element (15) holds part of a tray stack (3) received in the vertical guide (5), and a release position, in which the holding element (15) releases the tray stack (3). The travel path of the holding element (15) between the holding position and the release position is defined by a cam guide (21) or by a wedge guide (31).