Spring Making Machine Dynamic Tension Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional spring making machines cannot adjust initial tension during the spring making process, leading to issues like cambered ends of helical springs and gaps in closed pitch springs, which can result in uneven thickness and reduced durability.
Innovation Solution
The spring making machine features two sets of main bodies with forming devices and guiding tools that perform linear movements, allowing for adjustable initial tension through motor-driven displacement devices, enabling relative movement between guiding tools to change the twist angle and tension of the spring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual adjustment of fastener is used to change initial tension, then initial tension can be adjusted, but adjustment cannot be made during the spring making process
Solution Approach 1:
The patent transforms the static manual adjustment mechanism into a dynamic automated system. The displacement device enables the guiding tool to move automatically during the spring making process, allowing initial tension to be adjusted dynamically without manual intervention, thus resolving the contradiction between adjustability and productivity.
Solution Approach 2:
The patent replaces the manual mechanical adjustment system with an automated displacement device. This substitution eliminates the need for manual operation during the spring making process, enabling continuous production while maintaining the ability to adjust initial tension, thereby resolving the conflict between adaptability and productivity.
2Device complexity
If constant initial tension is used during spring making, then the manufacturing process is simple, but camber appears at the end of helical springs or gaps appear in closed pitch springs
Solution Approach 1:
The patent introduces dynamic adjustment of initial tension through the displacement device, which automatically modifies the guiding tool's position during spring making. This enables the system to maintain simple operation while achieving high manufacturing precision by adapting initial tension to different spring making stages, thus resolving the contradiction between process simplicity and product quality.
3Manufacturing precision
If grinding treatment is executed to fix uneven thickness, then surface quality is improved, but working life is reduced due to material removal
Solution Approach 1:
The patent applies preliminary action by adjusting the initial tension during the spring making process itself to prevent uneven thickness from occurring in the first place. The displacement device modifies the guiding tool's position proactively during manufacturing, eliminating the need for subsequent grinding treatment and preserving the full working life of the spring material.
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
This solution allows for dynamic adjustment of initial tension during the spring making process, improving the camber of helical springs, eliminating gaps in closed pitch springs, and ensuring uniform thickness, thereby extending the working life of the springs.
Implementation Method 1
The displacement devices of the present spring making machine are linear moving devices, which cause each main body to perform a linear movement
Implementation Method 2
the twist angle of the arc coil 9' is adjustable by manual adjustment to get different initial tension on the arc coil
Data Source
Figure 1
Figure 1A
Figure 1B~1C
AI summary
A spring making machine (2), comprising at least one main body (20), on which a forming device (22) is mounted; the forming device (22) being equipped with a guiding tool (220) to coil wire material (7) to arc shapes; a displacement device (25), which is connected to the main body (20) for moving it linearly as well as for moving linearly the forming device (22) and the guiding tool (220).