Simultaneous Corrugation Bending Device for Metal Sheets

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Solution Overview

Problem

Existing bending devices for forming corrugations in metal sheets can only create one corrugation at a time, making the process lengthy and complex for producing multiple corrugations in a single metal sheet without altering the sheet's thickness.

Innovation Solution

A bending device with a lower frame and an upper frame that moves vertically, featuring multiple dies and punches capable of forming multiple corrugations simultaneously, ensuring the metal sheet's thickness remains constant through a coordinated movement system that includes return members and clamps to maintain the sheet's position and shape.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a traditional bending device with a single die and punch is used, then the device complexity is low, but the productivity is low because only one corrugation can be formed at a time

Engineering Contradiction:
Improvenumber of corrugations formed per operationVSAvoidnumber of dies and punches
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent combines multiple dies and punches into a single integrated bending device. Specifically, it uses two dies (first and second) and two punches (first and second) that operate simultaneously on a metal sheet to form multiple parallel corrugations in one operation, thereby merging multiple forming functions into one unified device structure.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The bending device is segmented into multiple independent but coordinated components: a first die and punch for forming one corrugation, and a second die and punch for forming another corrugation. These segmented components can be independently positioned and adjusted along the metal sheet, allowing flexible configuration while maintaining simultaneous operation.

Inventive Principle:
Principle #1Segmentation

2Productivity

If multiple corrugations are formed simultaneously, then the productivity increases, but the manufacturing precision may deteriorate due to the complexity of coordinating multiple dies and punches

Engineering Contradiction:
Improvenumber of corrugations formed per operationVSAvoidthickness uniformity of metal sheet
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent employs dynamic adjustment mechanisms where the positions of the dies and punches can be independently adjusted along the metal sheet. The first and second dies are movable relative to each other, and the punches are similarly adjustable, allowing real-time coordination to maintain precise thickness control while forming multiple corrugations simultaneously.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system incorporates feedback through the coordinated movement control of multiple dies and punches. By monitoring and adjusting the positions of each component during the bending operation, the device ensures that the metal sheet thickness remains constant across all corrugation zones, maintaining manufacturing precision despite the increased complexity of simultaneous multi-point forming.

Inventive Principle:
Principle #23Feedback

3Device complexity

If the metal sheet is moved between each press stroke to form multiple corrugations, then the device complexity remains low, but the loss of time increases significantly

Engineering Contradiction:
Improvestructure of bending deviceVSAvoidtime to form multiple corrugations
Core Design Contradiction:
Device complexityVSLoss of time

Solution Approach 1:

The patent enables continuous useful action by forming multiple corrugations simultaneously in a single press stroke. Both the first and second dies and punches operate at the same time on different portions of the metal sheet, eliminating the need to move the sheet between strokes and maintaining continuous productive action throughout the forming process.

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The invention transitions from sequential one-dimensional forming (one corrugation after another along the sheet) to simultaneous two-dimensional parallel forming. By arranging multiple die-punch pairs side by side across the width of the metal sheet, the device forms multiple corrugations in parallel, effectively utilizing the transverse dimension to increase productivity without adding temporal steps.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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

Enables the simultaneous creation of multiple parallel corrugations in a metal sheet in a single operation, maintaining the sheet's thickness and simplifying the process, thus improving efficiency and reducing complexity.

Implementation Method 1

said second die being returned towards its spaced-apart position by a return member

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

an upper frame mounted with the ability to move vertically with respect to the lower frame between a rest position and a bending position

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentUS10688549B2Folding device for simultaneous formation of a plurality of corrugations in a metal sheet and method for use of said device
Publication Date: 2020.06.23 GAZTRANSPORT & TECHNIGAZ SA
  • US10688549B2 patent drawing
  • US10688549B2 patent drawing
  • US10688549B2 patent drawing

AI summary

The invention relates to a bending device for forming corrugations in a metal sheet including:a lower frame;an upper frame able to move vertically between a rest position and a bending position;at least two dies, carried by the lower frame; one being fixed with respect to the lower frame and the other mounted with the ability to slide;at least two punches carried by the upper frame; one being fixed and the other being mounted with the ability to slide on the upper frame;the bending device being designed so that, in operation, as the upper frame moves towards its bending position, the metal sheet transmits a pulling force to the sliding punch and to the sliding die which force moves them from a spaced-apart position toward a close-together position.