English
The 7-layer corrugated board production line is a high-end equipment in the packaging industry, specially designed for the production of 7-layer corrugated board with high strength, high buffering performance and good load carrying capacity.
1.7-layer corrugated board production line product introduction
The 7-layer corrugated board production line is a high-end equipment in the packaging industry, specially designed for the production of 7-layer corrugated board with high strength, high buffering performance and good load carrying capacity. This kind of cardboard is widely used in areas with extremely strict packaging requirements, such as the packaging of heavy or high-value products such as large machinery, precision instruments, high-end furniture. The production line integrates modern machinery manufacturing, automation control, thermal technology and other advanced technologies to ensure that the entire process from the base paper input to the finished output of 7-layer corrugated board is efficient, stable and high quality.
2. Core components and functions of production line
Base paper holder system
1. Structural design
The base paper holder is designed with a heavy steel structure with sufficient strength and stability to carry up to 7 rolls of base paper of different sizes and weights. Its unique spool support mode can adapt to various paper core inner diameters, ensuring the concentricity of the base paper during the rolling process and reducing the base paper shaking.
2. Tension control
Equipped with advanced multi-stage tension control system. The sensor monitors the tension change of each roll of base paper in real time and feeds back to the control system. By adjusting the braking torque of the brake device, the control system accurately controls the unwinding speed of the base paper to ensure that the tension of each layer of the base paper can be maintained within the best range during the entire production process. This not only prevents the base paper from breaking due to too much tension, but also avoids cardboard folds caused by too little tension, laying the foundation for subsequent high-quality production.
preheater
1. Heating method and efficiency
Using efficient steam heating or electric heating methods, the heating elements inside the preheater are evenly distributed to ensure that the base paper can be evenly heated when passing through. This uniform heating is very important for the base paper with different humidity and material, which can effectively adjust the humidity and temperature of the base paper, so that the base paper can achieve the best physical properties and improve the molding quality of the cardboard.
2. Temperature control accuracy
It has a high precision temperature control system, which can accurately set and control the preheating temperature according to the characteristics of different base paper and production process requirements, and the error can be controlled within a very small range. For example, for base paper with high humidity, its temperature can be quickly raised to the appropriate value, prompting water evaporation and enhancing the strength and stiffness of the cardboard.
Corrugating machine
1. Corrugating roll technology
The core of the corrugated forming machine is the corrugated roller. For the 7-layer corrugated board production line, it is equipped with multiple sets of high-precision corrugated rollers. These corrugated rollers are made of high quality alloy steel materials, after special heat treatment and surface treatment process, such as nitriding treatment, so that the surface hardness of the corrugated roller is high, strong wear resistance, good corrosion resistance. Corrugating roller manufacturing precision is very high, corrugating size error is very small, can ensure the production of corrugating high uniform, corrugating regular, so as to ensure the cushioning performance and strength of cardboard.
2. Corrugating adjustment
With flexible adjustment function, the gap and pressure between corrugated rollers can be adjusted quickly and accurately according to the requirements of different corrugated shapes (such as the combination of A, B, C, E, etc.). At the same time, it can also adapt to the changes of different base paper thickness and material to ensure the stable quality of corrugated forming.
Gluing system
1. Glue supply and measurement
The gluing system includes a glue storage tank, a conveying pipe and a metering device. The glue storage tank has a good mixing function to ensure the uniformity of glue. The metering device uses advanced flow sensors and precision control algorithms to precisely control the flow of glue, ensuring that the amount of glue applied to each layer of corrugated and face paper can reach the best value in the high-speed production process.
2. Design of glue head
The glue coating head adopts a special structural design, which can evenly coat the glue on the corrugated peak or the surface of the paper. It has adjustable coating width and Angle function to adapt to the requirements of different corrugated shapes and cardboard specifications. In addition, the coating head is also equipped with an automatic cleaning device, which can effectively prevent the glue from blocking or remaining during the coating process and ensure the stability of the coating quality.
Multi-layer compounding machine (double-sided machine and multi-layer bonding machine)
1. Principle of composite process
Multilayer laminating machine is the key equipment to gradually compound single-sided corrugated board and other face paper and core paper into 7-layer corrugated board. It adopts the method of hot plate heating and multiple pressure rollers pressurizing, so that each layer of paper is firmly bonded under high temperature and high pressure. The temperature distribution uniformity of the hot plate is excellent, through the special heating circuit design and temperature compensation technology, to ensure that the temperature deviation of the entire hot plate surface is within the allowable range, so that the glue between the layers of the cardboard can be fully cured, improve the adhesion strength of the cardboard.
2. Pressure control and adjustment
The pressure of the pressure roller can be adjusted accurately and linearly according to the different layers, thickness and material of the paperboard. During the compounding process, the control system adjusts the pressure of the pressure roller in real time according to the preset parameters to ensure that the best bonding effect can be achieved between each layer of paper and avoid the phenomenon of lamination or local poor bonding. At the same time, the multi-layer composite machine is also equipped with an automatic correction system, which can correct the deviation of the cardboard in the composite process in time to ensure the dimensional accuracy and quality of the cardboard.
Drying system
1. Drying method and layout
The drying system is a combination of hot air circulation drying and infrared drying. The hot air is evenly blown on the surface of the cardboard through the reasonably designed air duct, taking away the moisture in the cardboard. The infrared drying device is for the rapid evaporation of water deep inside the cardboard, and the two complement each other to improve the drying efficiency. The air duct layout of the drying system is carefully optimized to ensure a stable circulation of hot air around the board, so that all parts of the board can be fully dried.
2. Humidity control and energy saving
It is equipped with humidity sensor to monitor the water content of the cardboard in real time. The control system automatically adjusts the temperature of the hot air, the flow rate and the power of the infrared drying according to the humidity data to achieve the best drying effect while avoiding excessive drying resulting in degradation of the performance of the board. In addition, the drying system also uses energy-saving technologies, such as heat recovery devices, which recover part of the discharged hot air and reuse, reducing energy consumption.
Slitting machine and crosscutting machine
1. Longitudinal cutting accuracy and tool
Slitting machine adopts high precision cutting tools and advanced positioning system. The cutting tool is made of high quality high-speed steel or carbide material, and the cutting edge is finely ground, with extremely high sharpness and wear resistance. Through the encoder and photoelectric sensor, the positioning system precisely controls the moving position of the tool to ensure that the wide corrugated cardboard is cut to the required width along the longitudinal, and the cutting width error can be controlled within the millimeter range to meet the customized requirements of different customers for the width of the cardboard.
2. Crosscutting speed and accuracy
The crosscutting machine adopts high-speed flying knife cutting technology, and the material and design of the flying knife are specially designed for the requirements of high-speed cutting. It is equipped with advanced servo control system and photoelectric tracking system. The photoelectric tracking system monitors the running speed and position of the cardboard in real time. The servo control system precisely controls the cutting action of the flying knife according to the set length data to achieve fast and accurate transverse cutting. Even under high-speed production conditions, it can ensure the length accuracy of the finished paperboard and meet the needs of high-quality packaging production.
Stacker
1. Stacking method and stability
According to the characteristics of 7-layer corrugated board, a variety of stacking methods are designed. It can automatically select the appropriate stacking mode according to the size, weight and thickness of the cardboard, such as layered stacking, cross stacking, etc., to ensure the stability of the stacking. The stacker's robotic arm or conveyor system works precisely to neatly stack the cut cardboard onto pallets or pallets, preventing the cardboard from tipping or being damaged during the stacker process.
2. Counting and data management
With automatic counting function, it can accurately record the number of cardboard produced. At the same time, the stacker can also be connected with the control system of the production line to achieve real-time transmission and management of production data, which is convenient for enterprises to monitor and statistical analysis of the production process.
3. The technical advantages of the production line
Highly automated and intelligent
The whole 7-layer corrugated board production line is managed by advanced PLC control system and computer monitoring system. The operator can easily set production parameters through the human-machine interface, such as base paper specifications, cardboard layers, mold combinations, production speed, glue dosage, temperature Settings, etc. The production line can automatically monitor the operating status of each equipment, such as motor speed, temperature, pressure, tension and other parameters, and real-time feedback and adjustment. Once a fault occurs, the system will immediately issue an alarm and display detailed fault information, which is convenient for maintenance personnel to quickly locate and troubleshoot the problem. In addition, the intelligent production management system can also analyze the production data, provide a basis for optimizing the production process, improve production efficiency and product quality.
Excellent productivity
The 7-layer corrugated board production line has a high production speed and can meet the needs of large-scale production. The efficient collaboration of all aspects, from rapid unwinding of base paper, high-speed forming of corrugated, precise gluing, rapid drying to precise cutting and stacking, minimizes downtime in the production process. At the same time, the production line's rapid transformation ability is also very strong, in the production of different specifications and types of 7-layer corrugated cardboard, equipment adjustment can be quickly completed and quickly put into production, further improving the utilization rate and production efficiency of the equipment.
Super high cardboard quality
Through the strict control of every link in the production process, the quality of the 7-layer corrugated board produced is excellent. Cardboard has extremely high strength and stiffness, can withstand greater pressure and impact, and effectively protect the products in the package. The bonding between the layers is firm, the corrugated structure is complete and uniform, the flatness is good, and the dimensional accuracy is high, which provides an excellent foundation for the subsequent printing, slotting, nail box and other processing processes to ensure the overall quality of the packaging products.
4. Product application field
Large machinery and industrial equipment packaging
For large mechanical equipment, such as machine tools, construction machinery, etc., 7-layer corrugated cardboard can be customized according to the shape and size of the equipment, its high strength and good cushioning performance can resist vibration, collision and extrusion during transportation, and protect the precision parts of the equipment from damage.
Precision instruments and electronic equipment packaging
Precision instruments and electronic equipment usually have high requirements for moisture, anti-static and buffer protection of packaging. After special treatment, 7-layer corrugated cardboard can meet these requirements, prevent instruments and equipment from being affected by the external environment during transportation and storage, and ensure that their performance is not damaged.
High-end furniture and luxury packaging
High-end furniture and luxury goods need to prevent scratches, deformation, etc., during transportation. The high quality surface and strong carrying capacity of 7-layer corrugated board can provide the perfect packaging solution for these products, while its appearance can be beautified by printing and other means to enhance the overall image of the product.
