Strapping Machine Tension Control With Damped Detection Bracket
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Solution Overview
Problem
Existing strapping machines face difficulties in adapting to different materials and sizes of straps, leading to issues such as strap damage, slipping, or pinching, due to torque adjustments and friction forces during the strapping process.
Innovation Solution
A strapping machine with a movable assembly and detection bracket system that includes a damping component and electromagnetic damper to control strap tension, allowing for adjustable resistance and simplified retracting mechanism, reducing the need for torque detection and minimizing strap friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the tightening mechanism clamps the strap too tightly, then the strap is bound securely, but it leaves marks on the strap and may damage it
Solution Approach 1:
The patent employs a movable assembly with movable rollers that can dynamically adjust their position and apply variable clamping force to the strap. This dynamic mechanism allows the system to adapt the tightening force in real-time, ensuring sufficient binding security while preventing excessive force that would damage the strap or leave marks.
2Object-affected harmful factors
If the tightening mechanism does not clamp the strap tightly, then the strap is not damaged, but the strap will slip and binding is insufficient
Solution Approach 1:
The patent incorporates a detection bracket with a detection roller that monitors the strap's position and tension during the binding process. This feedback mechanism allows the system to detect when the strap is properly tightened and prevents slipping by adjusting the movable assembly's position accordingly, ensuring both strap integrity and binding security.
3Ease of operation
If a strap retracting motor and roller are used to retract the strap, then the strap can be tightened, but the system requires torque adjustment and friction force management which complicates operation
Solution Approach 1:
The patent extracts the motor and complex torque control system from the strap retracting mechanism. Instead, it uses a simple movable assembly with movable rollers that are driven by the strap's own tension and the detection bracket's movement, eliminating the need for motor torque adjustment and friction management while maintaining strap tightening capability.
4Speed
If the strap is subjected to friction force during retraction in the looping mechanism, then the strap can be moved along the track, but the friction force affects the tightness of the strap
Solution Approach 1:
The patent introduces a detection bracket as an intermediary element between the looping mechanism and the tightening mechanism. This bracket, with its detection roller, mediates the strap's movement and tension, allowing the strap to be moved along the circular track while maintaining consistent tightness by detecting and responding to tension changes.
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
The system ensures stable and accurate strapping without damaging the strap, improving universality and convenience by allowing easy tension adjustments, reducing costs, and enhancing stability and accuracy.
Implementation Method 1
the detection bracket is provided with a damping component that provides a certain resistance to the detection bracket
Implementation Method 2
the damping component is an electromagnetic damper with resistance adjustable
Data Source
AI summary
The present application belongs to the technical field of strapping machines, and particularly refers to a strapping machine and strapping method thereof. The strapping machine includes a frame, a strap storage mechanism, a looping mechanism, a tightening mechanism, a welding mechanism, and a strap cutting mechanism; the tightening mechanism includes a movable assembly, a detection roller, a detection bracket, a damping component, and a trigger device; the movable assembly first retracts the strap in the strap retracting process, then drives the detection bracket through the strap in tension, and the reel of the strap storage mechanism switches to the rotating state from the locked state, achieving the scheme of strap storage after strap retracting; when the detection bracket moves, the trigger device indirectly or directly controls the reel to release the strap.