Eccentric Transfer Mechanism for Fast, Accurate Packaging Handling
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Solution Overview
Problem
Existing transfer systems for packaging units are costly, slow, technically complex, and difficult to maintain, failing to meet high productivity demands and requiring short cycle times.
Innovation Solution
A transfer device utilizing an eccentric unit with a rotatably mounted eccentric element and a rod system, featuring a holding device that moves in two planes, allowing for high traverse speed and positioning accuracy, and is designed for easy maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If universal gantries or robots are used for transfer, then versatility in handling different packaging units is improved, but cycle time increases and acquisition costs rise
Solution Approach 1:
The transfer device is segmented into two independent drive units: a first drive unit for rotational movement providing versatility, and a second drive unit for translational movement providing high-speed positioning. This segmentation allows each unit to specialize in one aspect of motion, achieving both adaptability and productivity.
Solution Approach 2:
The device employs dynamic motion control where the holding device can independently rotate with the eccentric element while simultaneously translating along the rod. This dynamic coordination of rotational and translational movements enables the system to adapt to different packaging units while maintaining high transfer speeds.
2Adaptability or versatility
If universal gantries or robots are used for transfer, then versatility in handling different packaging units is improved, but device complexity increases
Solution Approach 1:
The complex transfer task is divided into two simpler independent motions: rotation via the eccentric element and translation via the rod. This segmentation reduces mechanical complexity by avoiding the need for complex robotic manipulators while maintaining versatility through coordinated motion of the two simpler components.
Solution Approach 2:
The invention adds a translational dimension (along the rod) to the traditional rotational eccentric mechanism. This dimensional extension allows the holding device to reach different positions and orientations, achieving versatility without requiring complex multi-axis robotic systems.
3Adaptability or versatility
If traditional transfer systems are used, then handling capability is maintained, but maintenance difficulty increases
Solution Approach 1:
The transfer device is divided into two independent drive units with distinct functions. This segmentation simplifies maintenance because each unit can be serviced independently without affecting the other, reducing overall maintenance complexity compared to integrated robotic systems.
Solution Approach 2:
The eccentric element and rod design allow for straightforward maintenance operations. The simple mechanical components can be easily accessed, inspected, and serviced without requiring specialized robotic system expertise, enabling easier self-maintenance or rapid repair.
4Productivity
If high traverse speed is achieved with only two moving elements, then productivity is improved, but positioning accuracy requirements increase
Solution Approach 1:
The coordinated control of the two drive units provides inherent positioning feedback. The rotational position of the eccentric element and the translational position of the rod can be independently controlled and monitored, allowing precise positioning to be achieved even at high traverse speeds through coordinated motion control.
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
The device achieves short cycle times, high productivity, and ease of maintenance while handling diverse packaging units with high reliability.
Implementation Method 1
a rotatably mounted eccentric element (9), which has a rod passage spaced radially from an axis of rotation of the eccentric element (9)
Implementation Method 2
the rod, particularly preferably at its second end, is fixed to a bearing element to prevent rotation about itself, and the bearing element follows the rotational movement of the rod about the axis of rotation
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The transfer device for transferring packaging units (3) comprises at least one eccentric unit (2) with a rotatably mounted eccentric element (9) that has a rod guide (19) for a rod (13). The rod (13) is rotatably mounted by means of the rod guide (19) and is axially displaceable in the direction of the eccentric element (9). The transfer device also comprises a first drive unit (11) for rotating the eccentric element (9) and a second drive unit (12) for displacing the rod (13). A holding device (15) for receiving packaging units (3) is connected to the rod (13).