Expansion Device for Concrete Pipe Reinforcement Geometry
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Solution Overview
Problem
Existing devices for producing reinforcement baskets for concrete pipes with bell-shaped socket ends lack the ability to efficiently modify the geometry of the reinforcement, particularly the cross-sectional shape, which limits their adaptability and versatility.
Innovation Solution
A device with an expansion mechanism featuring a single expansion slide and a mold slide, driven by a transmission mechanism, allows for the modification of the radial position of actuating elements, enabling the change of the reinforcement's geometry from round to oval or vice versa, through a system of actuator drives, detent elements, and guide elements, allowing for various cross-sectional shapes such as round, oval, rectangular, or polygonal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single expansion slide is used to modify radial position of actuating elements, then device complexity is reduced, but the ability to produce arbitrary cross-sectional geometries is limited
Solution Approach 1:
The expansion device is segmented into two independent slides: the expansion slide for radial position modification and the mold slide for geometric shaping. Each slide can be independently adjusted to achieve different cross-sectional geometries, allowing the system to produce round, oval, rectangular, or polygonal shapes while maintaining relatively simple individual component structures.
Solution Approach 2:
Both the expansion slide and mold slide are designed to be dynamically adjustable during the production process. The expansion slide modifies radial positions while the mold slide adjusts geometric parameters, enabling continuous adaptation to produce various cross-sectional shapes without changing the fundamental device structure.
2Adaptability or versatility
If the radial position of actuating elements is modified during production, then adaptability to different geometries is improved, but the device complexity increases due to additional adjustment mechanisms
Solution Approach 1:
The expansion slide and mold slide are designed as universal adjustment mechanisms that can produce multiple cross-sectional geometries through different positioning combinations. The same slides can generate round, oval, rectangular, or polygonal shapes by adjusting their relative positions, eliminating the need for separate mechanisms for each geometry type.
Solution Approach 2:
The transmission mechanism acts as an intermediary between the slides and the actuating elements. It translates the positional adjustments of the expansion and mold slides into corresponding radial position modifications of the actuating elements, enabling geometry changes while maintaining a structured and manageable mechanical connection system.
3Manufacturing precision
If multiple slides are used for geometry modification, then manufacturing precision of cross-sectional shapes is improved, but the ease of operation decreases due to multiple adjustment controls
Solution Approach 1:
Each slide is assigned a specific function: the expansion slide handles radial position modification while the mold slide handles geometric shaping. This functional differentiation allows each component to be optimized for its specific task, improving overall manufacturing precision while keeping individual adjustment operations relatively simple and intuitive.
Data Source
AI summary
Device for producing reinforcements, in particular reinforcement baskets for concrete pipes having a bell-shaped socket end, having an expansion device which has a single expansion slide, wherein the expansion slide is configured for modifying, in particular, during the production process of the reinforcement, a radial position of an assigned actuating element for a longitudinal wire of the reinforcement by way of a transmission mechanism of the expansion device. The device is characterized in that the expansion device has a mold slide, wherein an actuator drive is provided for moving the mold slide, and wherein the actuator drive for a linear movement of the mold slide in relation to the expansion slide is supported on the expansion slide.