Introduction to Highway Guardrail Machines
Highway guardrail machine is a special equipment used for producing highway guardrail plates. The following is a detailed introduction for you from several aspects including working principle, type, structural composition, performance characteristics and application scenarios:
Working principle
The working principles of different types of guardrail machines vary, but generally speaking, they all process raw materials (usually steel strips) through a series of processing procedures to produce guardrail plates that meet the standards of expressway guardrails. Take the common production of corrugated beam guardrail plates as an example. The steel strip is first uncoiled by the uncoiling device, then enters the leveling device to relieve stress, and then is rolled into a corrugated shape in the forming device. After that, it goes through processes such as cutting and punching, and finally forms the finished guardrail plate.
Type
Hydraulic guardrail machine
It is powered by hydraulic pressure and features strong power. Its hydraulic system can precisely control pressure and stroke, and is capable of adapting to the processing of steel strips of different specifications and materials. During the production process, the hydraulic-driven forming roller can provide stable pressure to ensure the waveform accuracy and quality of the guardrail plate.
The hydraulic guardrail machine is suitable for large-scale production and has a relatively high production efficiency, but its equipment structure is relatively complex and the maintenance cost is also relatively high.
• Mechanical guardrail machine
The movement of each working component is mainly achieved through mechanical transmission. Its structure is relatively simple, operation is convenient and the price is relatively low.
The power transmission of mechanical guardrail machines is relatively direct, but they may not be as good as hydraulic guardrail machines in terms of pressure control and precision. They are suitable for some small production plants that do not have particularly strict requirements for the specifications of guardrail plates.
Structural composition
• Uncoiling device
It is used to unroll coiled steel strips and is usually composed of components such as uncoiling machines and straightening machines. The uncoiler can smoothly open the steel strip coil, while the straightening machine performs initial straightening on the steel strip to ensure good flatness when it enters the subsequent processing procedures.
Forming device
◦ It is the core part of the guardrail machine, composed of a series of rollers of different shapes. When the steel strip passes through these rollers, it is gradually pressed into the shape of a corrugated beam. The precision and quality of the rollers directly affect the forming quality of the guardrail panels, so they need to be inspected and replaced regularly.
Cutting device
According to production requirements, the formed guardrail panels are cut to the required length. The common cutting methods include flying saw cutting and shearing machine cutting. Flying saw cutting is fast and precise, and is suitable for automated production lines. Shearing machines are suitable for cutting thicker plates.
Punching device
Punch out installation holes on the guardrail panels to facilitate subsequent installation and fixation. The punching device is usually composed of a punch, a die and a stamping mechanism, which can precisely control the position and size of the punching.
Control system
The programmable logic controller (PLC) and human-machine interface (HMI) are adopted to achieve the automatic control of the entire production line. Operators can set production parameters such as the length of the guardrail panels, the height of the waveforms, and the distance between holes through the human-machine interface, and monitor the operating status of the equipment in real time.
Performance characteristics
"Efficient production"
It has a relatively high production speed and can produce a large number of guardrail panels in a short time to meet the large-scale demands of expressway construction. Some advanced guardrail machines can produce hundreds of meters of guardrail panels per hour.
High precision
Through precise molds and control systems, the parameters such as the waveform size and hole spacing of the guardrail panels are ensured to comply with national standards, thereby enhancing the installation accuracy and protective performance of the guardrail panels.
• High degree of automation
It has achieved fully automated production from the uncoiling of steel strips to the packaging of finished products, reducing manual intervention, lowering labor intensity, and simultaneously enhancing production efficiency and the stability of product quality.
Strong adaptability
According to different production requirements, the equipment parameters can be adjusted to produce guardrail plates of various specifications and models, such as corrugated beam guardrail plates and cable guardrails.
Application scenarios
Expressway construction
It is the main equipment for the production of highway guardrails, providing protective facilities that meet safety standards for highways. The high-quality guardrail plates produced by guardrail machines can effectively prevent vehicles from losing control and running off the road, ensuring driving safety.
Bridge protection works
Installing guardrails on both sides of Bridges can prevent vehicles from falling and protect the safety of pedestrians and vehicles. The guardrail plates produced by the guardrail machine can be customized according to the characteristics and requirements of the bridge, meeting the requirements of the bridge protection project.
• Urban road isolation
In urban roads, guardrails can serve to separate lanes and guide traffic. The guardrail plates produced by guardrail machines can be used in the median strips of urban roads, between sidewalks and non-motorized vehicle lanes, and other positions, improving the safety and traffic efficiency of urban roads.
