Forged Clip Transport Unit for Film Stretching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing transport units for plastics film stretching installations are complex and time-consuming to produce, prone to shrinkage cavities, and require extensive post-processing due to their intricate geometry, leading to reliability issues and long development times.
Innovation Solution
The use of forged bodies for transport units and gripper parts, which reduces production time, eliminates shrinkage cavities, and allows for simpler post-processing, enabling more reliable and efficient systems with reduced height, suitable for both sequential and simultaneous stretching installations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If cast parts are used for transport units, then complex geometries can be achieved, but production time increases and shrinkage cavities occur
Solution Approach 1:
The patent changes the manufacturing parameter from casting to forging. This parameter change eliminates shrinkage cavities inherent in casting processes and reduces production time while maintaining the capability to produce complex geometries through forged parts with integrated features like guide rail interfaces and gripper mounting points.
2Shape
If cast parts are used for transport units, then complex geometries can be achieved, but reliability decreases due to shrinkage cavities
Solution Approach 1:
The manufacturing method is changed from casting to forging. Forging produces parts with continuous grain structure and no shrinkage cavities, thereby significantly improving structural reliability while still achieving complex geometries through the forging process and subsequent machining.
3Shape
If cast parts are used for transport units, then complex geometries can be achieved, but post-processing time increases
Solution Approach 1:
The patent applies preliminary action by integrating design features directly into the forging process. Features such as guide rail interfaces, gripper mounting points, and structural contours are formed during forging itself, eliminating the need for extensive post-casting machining and reducing post-processing time significantly.
4Device complexity
If transport units are designed with integrated features, then device complexity is reduced, but manufacturing difficulty increases
Solution Approach 1:
The patent changes the manufacturing parameter from casting to forging, which is better suited for producing integrated structures. Forging allows complex integrated geometries to be formed in a single piece with continuous grain structure, reducing device complexity by eliminating separate components while maintaining ease of manufacture through the forging process.
Data Source
AI summary
The invention relates to an improved transporting unit for a transporting device, in particular for a transverse, longitudinal, and/or simultaneous stretching installation, wherein transporting units (KT) can be moved along a guiding and/or supporting rail by means of a clip unit (KL) and a drive unit (AT) connected to the clip unit, is characterized by the following features: the clip transporting unit (KT) or the clip unit (KL) and/or the drive unit (AT) has, for example, a volume or weight fraction of at least 60% that consists of a forged part (ST) and/or is composed of a forging blank (SR).