Adjustable Bending Machine With Automatic Feeding and Pressing
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Solution Overview
Problem
Traditional metal plate bending machines are complex, labor-intensive, inefficient, and costly due to manual feeding, fixed bending angles, and high energy consumption, with complex maintenance and limited adaptability for different bending angles and widths.
Innovation Solution
A simplified bending machine design featuring an automatic feeding mechanism, a compact structure with a pressing mechanism driven by a lower-power motor, and an adjustable pressing die system that allows for various bending angles and widths using a crank-connecting rod mechanism and sliding rail system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual feeding is used in traditional bending machines, then the structure is simple, but the labor intensity is high and work efficiency is low
Solution Approach 1:
The feeding mechanism is divided into independent functional modules: a feeding device with feeding rollers for automated plate input, a clamping device with clamping plates and clamping cylinders for workpiece securing, and a positioning device with positioning blocks and guide rails for precise positioning. This segmentation enables automated feeding while maintaining manageable structural complexity through modular design.
Solution Approach 2:
The pressing mechanism is designed to perform multiple functions: it not only presses the metal plate during bending but also serves as part of the feeding and positioning system. The pressing plate and pressing cylinders are integrated with the overall frame structure, allowing the same components to fulfill multiple operational roles throughout the bending cycle.
2Force
If hydraulic mechanism or high-power motor is used for pressing, then the pressing force is sufficient, but the structure is complex and energy consumption is high
Solution Approach 1:
The traditional hydraulic pressing system is replaced with a mechanical pressing mechanism consisting of pressing plates, pressing cylinders, and connecting rods that leverage the frame structure for force multiplication. This mechanical substitution eliminates hydraulic fluid systems and high-power motors while achieving sufficient pressing force through mechanical advantage and structural rigidity.
Solution Approach 2:
The pressing mechanism incorporates dynamic elements including movable pressing plates that can adjust their position and apply force at different stages of the bending process. The connecting rods and pivots allow the pressing force to be applied dynamically throughout the bending cycle, optimizing force application while reducing peak power requirements compared to static hydraulic systems.
3Productivity
If fixed bending angle is used, then the structure is simple, but different bending dies need to be replaced for different angles, reducing production efficiency
Solution Approach 1:
The bending mechanism features a movable bending die mounted on a sliding rail system that can be positioned at different angles and locations. The bending die is connected to the pressing mechanism through pivots and linkages, allowing it to move dynamically during the bending process. This dynamic positioning capability enables the same bending die to create multiple bending angles by adjusting its starting position and movement trajectory, eliminating the need for multiple fixed-angle dies.
Solution Approach 2:
The bending mechanism is segmented into independently adjustable components: the bending die can be positioned at different locations on the sliding rail, and the pressing mechanism can be adjusted to apply force at different points. This segmentation allows flexible configuration for different bending angles without requiring complete die replacement, as each component can be independently positioned and adjusted.
4Adaptability or versatility
If fixed width pressing die is used, then the structure is simple, but re-pressing of bent edges causes damage and requires multiple machines
Solution Approach 1:
The pressing die width is made dynamic through a sliding rail system that allows the pressing plate to move laterally along the rail. The pressing mechanism can adjust its width by moving the pressing plate to different positions on the rail, enabling the same pressing die to accommodate different metal plate widths. This dynamic adjustment prevents re-pressing of previously bent edges by positioning the pressing plate appropriately for each workpiece size.
Solution Approach 2:
The pressing mechanism is designed as a universal system that can handle multiple workpiece widths and bending configurations with a single device. The sliding rail system and adjustable pressing plate allow the same pressing die to perform pressing operations on edges at different positions and orientations, eliminating the need for multiple specialized pressing dies or machines for different width requirements.
Data Source
AI summary
A bending machine including a rack, the rack is provided with a feeding mechanism, one side of the feeding mechanism is provided with a pressing mechanism capable of pressing a workpiece firmly, and one side of the pressing mechanism is provided with a bending mechanism capable of bending the workpiece inside the bending mechanism. The bending machine is simple in structure, high in production and capable of reducing labor cost.