The double-facer of the cardboard production line is an indispensable and important equipment in the cardboard production line. Its product introduction can be carried out from the following aspects:
1. Basic Overview
The double-facer of the cardboard production line, also known as the heating
Laminating Machine, is a key single machine in the
Corrugated Cardboard Production Line. Its main function is to bond, heat and solidify the single-sided corrugated cardboard and the face paper, and then dry and cold-form them into high-quality three-layer, five-layer or seven-layer corrugated cardboard. In this process, the double-facer not only improves the physical properties of the cardboard, but also ensures the structural stability and aesthetics of the cardboard.
2. Components
The double-facer is mainly composed of the following key parts:
Heating section: including the heating plate (also known as the hot plate or flat drying cylinder), which is used to gelatinize, bond, and solidify the adhesive, and evaporate the moisture in the adhesive to form a straight and firm cardboard. The heating plate is usually a thick-walled hollow metal container, which is heated by high-temperature steam.
Cooling section: The function of the cooling section is to further evaporate the moisture of the corrugated cardboard and cool it to shape. It usually includes cooling main beams, crossbeams and cold plate components, etc., and the cardboard reaches the final stable state through cooling.
Conveyor Belt: It is divided into upper conveyor belt and lower conveyor belt, which is mainly responsible for driving and pulling corrugated cardboard, transmitting laminating pressure, and absorbing moisture evaporated from the cardboard. The conveyor belt needs to have good softness, hygroscopicity, air permeability, wear resistance and high temperature resistance.
Pressing roller or hot pressing plate: The corrugated cardboard is attached to the heating plate through the conveyor belt to increase the laminating pressure on the cardboard. The pressing roller or hot pressing plate can be adjusted according to the number of layers, paper quality and forming conditions of the cardboard to achieve the best bonding effect.
Temperature regulating device: It is used to quickly adjust the temperature of the heating plate when temporarily stopping or reducing the speed to prevent the cardboard from overheating.
3. Working principle
The working principle of the double-faced machine of the cardboard production line can be simply summarized as the following steps:
Single-sided corrugated cardboard and face paper are fed into the double-faced machine.
The adhesive is gelatinized, bonded, solidified, and the water is evaporated through the heating part.
The conveyor belt and the pressing roller or hot pressing plate work together to fit the cardboard tightly on the heating plate to ensure the bonding effect.
The cooling section further evaporates the moisture and cools the shaped cardboard.
Finally, the processed corrugated cardboard is passed to the subsequent slitting and creasing machine and other equipment for cutting and processing.
IV. Product Features
High efficiency: The double-sided machine greatly improves the production efficiency of the cardboard through continuous operation processes such as heating, cooling and pressing.
Stability: The cardboard undergoes strict processing in the double-sided machine to ensure its structural stability and excellent physical properties.
Adaptability: The double-sided machine can be adjusted and optimized according to different cardboard specifications and production requirements to adapt to various production scenarios.
Energy saving and environmental protection: Modern double-sided machines usually use advanced energy-saving technologies and environmentally friendly materials to reduce energy consumption and emissions.
V. Application field
The double-sided machine of the cardboard production line is widely used in the double-sided coating production of paper products such as cartons, paper boxes, picture albums, manuals, etc. In addition, it can also be used in the production of various cultural supplies, packaging materials, printed materials and other fields that require surface coating processing.
In summary, the double-facer of the cardboard production line is one of the important equipment on the cardboard production line. Its high efficiency, stability and strong adaptability make it play an important role in the field of paper product production.
