Metal Drawing Channel and Bending Control for Precise Multi-Bar Feeding
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Solution Overview
Problem
Existing machines for working metal products often result in uncontrolled deformation, leading to unsuitable finished products, and are complex, expensive, and prone to surface damage, especially when processing multiple products simultaneously.
Innovation Solution
A machine with a dual drawing apparatus system and a work apparatus featuring a bending device with adjustable guiding and holding means, allowing for precise control and reduced waste by aligning metal products for simultaneous processing and minimizing end product length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If high retaining pressure is applied by drawing apparatus to prevent deformation, then control of metal product deformation is improved, but surface damage occurs on the metal product
Solution Approach 1:
The patent changes the pressure parameter by introducing a variable pressure system where the drawing apparatus applies different pressure levels at different stages. The pressure is increased only when necessary to control deformation, and reduced or removed when the metal product is stable, thereby preventing surface damage while maintaining manufacturing precision.
Solution Approach 2:
The patent implements periodic application of retaining pressure through the drawing apparatus. The pressure is applied intermittently during the working process rather than continuously, allowing the metal product to stabilize between pressure applications. This periodic action prevents cumulative surface damage while maintaining adequate control over deformation.
2Manufacturing precision
If two or more drawing apparatuses are used in series to control deformation, then manufacturing precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent transforms the static configuration of multiple drawing apparatuses into a dynamic single apparatus that can adjust its properties during operation. The drawing apparatus incorporates variable pressure capability and adjustable positioning, allowing it to perform multiple functions that would otherwise require separate apparatuses, thereby reducing complexity while maintaining precision.
Solution Approach 2:
The patent designs the drawing apparatus to perform multiple functions: it serves as both a positioning device and a deformation control device, and can operate at different pressure levels for different stages of processing. This multi-functionality eliminates the need for multiple specialized apparatuses, reducing device complexity and cost while maintaining manufacturing precision.
3Reliability
If high retaining pressure is applied to guarantee drawing of metal products with different sections, then drawing reliability is improved, but surface damage and insufficient pressure occur
Solution Approach 1:
The patent implements variable pressure parameters that adapt to the specific section of the metal product being drawn. The drawing apparatus can adjust pressure levels based on the local geometry and material properties, ensuring adequate drawing reliability for different sections without applying excessive pressure that would cause surface damage.
4Productivity
If multiple metal products are worked together, then productivity is improved, but uniform feed control becomes difficult
Solution Approach 1:
The patent uses variable pressure parameters applied individually or differentially to each metal product in the drawing apparatus. This allows each product to be fed at its optimal rate based on its specific requirements, ensuring uniform feed control across multiple products while maintaining high productivity through simultaneous processing.
Data Source
AI summary
Machine to work oblong metal products, including a drawing apparatus to feed at least one of said metal products in a direction of feed and a work apparatus aligned in said direction of feed. The drawing apparatus includes a first drawing unit and a second drawing unit opposite each other with respect to said direction of feed. The first drawing unit and the second drawing unit define between them, in said direction of feed, a drawing channel for the at least one metal product. The drawing channel has a lying plane, defined by a plurality of anchoring inserts, for the at least one metal product, a supply apparatus being possibly present upstream of said drawing apparatus.