Longitudinal Working Head Positioning for Container Machines
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Solution Overview
Problem
Existing machines for working rigid materials, such as cardboard, lack stable and precise positioning of longitudinal working heads, leading to unreliable clamping and increased preparation and production times.
Innovation Solution
A machine with a fixed frame, transverse and longitudinal working heads, and positioning means that allow for precise and secure positioning of longitudinal working heads during operations, using guide rails and inflatable clamping devices to ensure stable and efficient positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single transverse guide bar is used to support longitudinal working heads, then the device complexity is reduced, but the positioning stability and clamping reliability deteriorate
Solution Approach 1:
The single transverse guide bar is segmented into multiple parallel guide bars (first transverse guide bar and second transverse guide bar). Each longitudinal working head is supported by both guide bars through sliding elements, dividing the support function across multiple structures to enhance stability while maintaining manageable complexity.
Solution Approach 2:
The sliding elements are nested between the two transverse guide bars, with each sliding element contacting both guide bars. This nested arrangement allows the longitudinal working heads to be stably supported by the combined structure of both guide bars while maintaining ease of positioning.
2Manufacturing precision
If longitudinal working heads are positioned sequentially, then the positioning precision is improved, but the production time increases
Solution Approach 1:
The positioning means pre-position the longitudinal working heads on the transverse guide bars at required locations before the working cycle begins. This preliminary positioning ensures that when working operations start, all heads are already in their correct positions, eliminating the need for time-consuming repositioning during production while maintaining precision through the guide bar structure.
Solution Approach 2:
The longitudinal working heads are designed to be movable along the transverse guide bars through sliding elements, allowing dynamic repositioning when needed. During normal operation, they remain fixed at optimized positions, combining the benefits of precise positioning with the flexibility to adjust when production requirements change.
3Manufacturing precision
If the machine is stopped for positioning adjustments, then the positioning accuracy is improved, but the downtime increases
Solution Approach 1:
The positioning means enable longitudinal working heads to be positioned at required locations before production starts. This preliminary action ensures high positioning accuracy is achieved in advance, eliminating the need to stop the machine during operations for adjustments, thus preventing setup downtime during the working cycle.
Solution Approach 2:
The guide bar and sliding element design allows longitudinal working heads to maintain their positions continuously during the working cycle without interruption. The continuous support structure eliminates the need for periodic stopping and repositioning, ensuring both accuracy and continuous production.
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
Optimizes the positioning of longitudinal working heads, eliminating downtime for machine setup changes and enabling faster production of containers by ensuring precise and reliable guide and clamping operations.
Implementation Method 1
using guide rails and inflatable clamping devices to ensure stable and efficient positioning
Data Source
AI summary
A machine and a method to carry out workings on a sheet of a sufficiently rigid material is suitable to make containers. The machine includes a transverse working head guided by a first transverse guide member, one or more longitudinal working heads, each selectively positionable in a desired transverse position, guided by at least a second transverse guide member parallel to the first transverse guide member; and positioning mechanism configured to cooperate with each longitudinal working head in order to selectively position it in the desired transverse position.