Packaging Machine Tool Lifting Mechanism for Ergonomic Change
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Solution Overview
Problem
Existing packaging machine tool changing systems are either expensive or do not allow for ergonomic tool changes, making the process inefficient and labor-intensive.
Innovation Solution
A packaging machine design where the upper and lower tools of the deep-drawing or sealing stations can be raised above the machine frame using a lifting device, allowing for ergonomic access and simplifying the tool change process by enabling tools to be moved sideways and automatically unlocked/locked, with the option for shared or individual drives for each tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If existing tool changing systems are used, then tool changing can be performed, but the system becomes expensive and ergonomically unfavorable
Solution Approach 1:
The tool changing process is segmented into independent steps: raising the tool vertically using the lifting device, moving it horizontally to the transfer position, and then lowering it. This segmentation allows each motion to be performed by simple, inexpensive mechanisms rather than a complex integrated system.
Solution Approach 2:
The lifting device originally designed for tool operation is made multi-functional by enabling it to perform both the vertical lifting function and the vertical component of tool changing. This eliminates the need for a separate dedicated lifting mechanism, reducing system complexity and cost.
2Ease of operation
If tools are raised above the machine frame for tool change, then ergonomic access is improved, but additional lifting mechanism is required
Solution Approach 1:
The existing lifting device is made multi-functional to perform both its original function of raising/lowering tools during operation and the additional function of raising tools above the machine frame for tool changing. This eliminates the need for a separate lifting mechanism.
Solution Approach 2:
The lifting device serves itself by performing dual functions - it lifts the tool for both operational purposes and for tool changing purposes, eliminating the need for additional dedicated lifting equipment.
3Productivity
If tools are moved sideways during tool change, then tool exchange is enabled, but lateral movement mechanism is added
Solution Approach 1:
The tool changing motion is segmented into vertical lifting and horizontal moving components. The vertical lifting is handled by the existing lifting device, while the horizontal movement to the transfer position is a simple translation that can be achieved with basic mechanical means, avoiding complex integrated mechanisms.
Data Source
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AI summary
The present invention relates to a method for changing the upper and lower dies of a packaging machine. Furthermore, the present invention relates to a packaging machine.