Replaceable Rebar Bundling Gun Head With Auto Caliber Detection
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Solution Overview
Problem
Existing rebar bundling machines have fixed gun heads, limiting their applicability to a specific size range, leading to inefficiencies, poor bundling, and increased need for multiple machines, which complicates operations and increases labor and procurement costs.
Innovation Solution
A rebar bundling machine with a replaceable gun head equipped with a gun head information identification component, such as a resistor, electronic tag, or wireless communication module, that allows the main control unit to identify the gun head caliber and adjust wire length and torque accordingly, enabling the machine to handle various rebar sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a fixed gun head component is used in the rebar bundling machine, then the machine structure is simple and manufacturing is easy, but the machine can only handle rebar nodes within a specific size range, reducing adaptability
Solution Approach 1:
The gun head is divided into multiple replaceable caliber components (e.g., 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm calibers). Each caliber is a separate module that can be independently manufactured and replaced, allowing the machine to handle different rebar node sizes while keeping individual component manufacturing simple.
Solution Approach 2:
The rebar bundling machine is designed with a universal interface and control system that can accommodate multiple gun head calibers. The main control unit automatically identifies the installed gun head caliber through an identification component and adjusts operating parameters accordingly, enabling one machine to perform multiple bundling tasks across different rebar sizes.
2Adaptability or versatility
If multiple types of rebar bundling machines are used to cover various rebar sizes, then adaptability to different rebar node sizes is improved, but the burden on workers and complexity of tool management increases
Solution Approach 1:
The machine employs a universal platform with interchangeable gun heads and an automatic caliber identification system. Workers only need to carry one machine and swap gun heads as needed, dramatically reducing the burden of carrying multiple machines and simplifying tool management while maintaining the ability to handle various rebar sizes.
Solution Approach 2:
The machine automatically identifies the installed gun head caliber through an identification component (such as a resistor, electronic tag, or wireless communication module) and the main control unit automatically configures the appropriate wire length and torque parameters. This self-configuration eliminates manual setup complexity and reduces the skill burden on workers.
3Device complexity
If the gun head caliber does not match the rebar node size, then the machine structure remains simple, but bundling quality deteriorates with poor rebar bundling, wasted wire, and unstable tightening
Solution Approach 1:
The machine incorporates an automatic caliber identification system that provides feedback to the main control unit about the installed gun head caliber. The control unit uses this feedback to automatically adjust wire length and torque parameters to match the specific rebar node size, ensuring optimal bundling quality and preventing wire waste or unstable tightening.
Solution Approach 2:
The system dynamically changes operating parameters (wire length, torque) based on the detected gun head caliber. The main control unit stores different parameter sets for different calibers and automatically selects the appropriate parameters, ensuring reliable bundling performance across various rebar sizes without increasing mechanical complexity.
4Adaptability or versatility
If torque adjustment is provided in the rebar bundling machine, then adaptability to different tightening requirements is improved, but the control system becomes more complex and prone to wrong judgments
Solution Approach 1:
The automatic caliber identification system provides accurate feedback about the gun head caliber to the main control unit, which then automatically selects the appropriate torque parameters. This feedback mechanism eliminates the need for complex manual torque adjustment interfaces and reduces control board complexity by automating parameter selection based on detected caliber.
Solution Approach 2:
The machine performs self-configuration by automatically detecting the gun head caliber and setting the appropriate torque parameters without requiring complex user input or judgment. The main control unit autonomously manages the torque adjustment based on the identified caliber, simplifying the control system while maintaining adaptability.
Data Source
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Figure 3
Figure 4a~4b
AI summary
The invention discloses a rebar bundling machine, a replaceable gun head and a working method thereof. The replaceable gun head according to the present invention comprises a gun head information identification component provided on the gun head, wherein after mounting the gun head on the rebar bundling machine, the gun head information identification component is connected to a main control unit of the rebar bundling machine, and the main control unit obtains information of the gun head through the gun head information identification component. The rebar bundling machine of the present invention comprises a gun shell, a main control unit provided in the gun shell, and the replaceable gun head mounted on the front end of the gun shell; in the present invention, the number of rotations for the wire feeding motor and the torque threshold for the wire twisting motor are set for different muzzle information, so as to control the length and torque of the wire output from the rebar bundling machine with different gun heads; the invention can meet the applications of various sizes of rebars combined at construction sites, effectively reduce the burden of workers carrying and managing the rebar bundling machine, and greatly reduce the cost of machinery procurement at construction sites.