NTRY Two Step Impregnation Drying Production Line for Melamine paper and Phenolic Paper
No.WK-20250915-01
The impregnation and coating production line for wood-based panel facing paper is a highly automated production line designed for the gluing of decorative paper and HPL base paper. It can continuously impregnate, coat, dry, and shear materials such as wear-resistant paper, insulation paper, kraft paper, and balance paper to ensure precise and efficient operation. The raw materials used include various impregnated base papers and melamine resin (MF), urea-formaldehyde resin (UF), phenol-formaldehyde resin (PF), etc.
The impregnation and drying production line can be divided into a primary impregnation production line and a secondary impregnation production line. The primary impregnation production line has a relatively simple structure and high production efficiency. The same resin is used for back coating and impregnation, and the amount of glue applied is about 70%. High-pressure melamine decorative panels and base paper are generally produced in this way.
1. Un-Winder 1.1 Include Nos 2 pieces of Air‐expanding shafts shift two rollers of raw paper without stop in operating. Two set of tension control make paper unwinding automatically to match operating liner speed. 2.2 Feature Auto Splicer device is located between two raw paper rollers. Paper from two different paper roll can be jointed together by shifting knob while the initial pattern paper from its roll is cut off.
2. Impregnator 2.1 Working principle Printed paper has a thorough impregnation in glue bath; glue content pick‐up is gauged by the gap between two doctors 2.2 Include Frame、two roller、auto splicer、tension control、magnetic brake、etc. 2.3 Doctor Rollers Doctor Roller device, Nos 2 of Hard chrome Galvanized High Glossy roller; one roller located in a fixed position and driven by decelerator thorough universal joint. Another piece roller can be adjusted gap between two rollers. The movable roller at φ290mm, there is electronics screw controls roller horizontal movement; the gap precision will be Tan10 x 0.75mm/ (3.14 x 24mm) in stepless at 1.7x10‐4MM degree (0.1micro) .
3. 1st Heating Ovens 3.1 Main Features Adopt the newest structure design of full panel vertical operating, gives easier maintenance; It has good paper stability, high speed, low noise and heat insulation features 3.2 Include Thermal oil distributor、Heating exchanger、hot air fan、air blower、fresh air control、etc.
4. 1st Cooler 4.1 Main Features Each cooling zone is composed of a top and bottom air chest, blower connecting pipe and a blower fan. Upper and down Air nozzles equalized in same distance. Two pieces of side‐door of the cooling chamber is easy inspection and cleaning. Autolocking knob can be firmly closed.
5. 2nd Coater 5.1 Main Features Wider range MESH ROLLER coating device: It equips with a set of glue scraper and automatic trimming blades. The top and bottom coating roller are driven by two independent deceleration motors, each motor is 1.1kw. VVVF controls line speed of the coating rollers. smooth and leveling device consists of 4 chrome‐plated roller and telescopic cylinder. Nos 4 smoothing rollers are divided into the upper and lower groups, driven by two sets of 0.75kw deceleration motor in VVVF method. The telescopic cylinder can separate the smooth roller device, for easy cleaning and overhaul.
6. 2nd Heating Ovens 6.1 Main Features Each oven is equipped with 1 circulating hot air fan. Diameter at 800mm, the maximum hot air output is 18000m³/h. hot air fan is Controlled by VVVF. Honeywell Nr.1 PT100 temperature sensor to detect chamber inner temperature. All separate oven assembles with 1 temperature controller, indicating and setting oven temperature; A extra three‐way electric distributing valve make it a twice heating circuit output, avoiding over‐heating and energy wasted.
7. 2nd Cooler 7.1 Main Features 2nd cooling chamber section as 3Meter, adopted one 3kw centrifugal motor. Each cooling zone is composed of a top and bottom air chest, blower connecting pipe and a blower fan. Upper and down Air nozzles equalized in same distance. Two pieces of side‐door of the cooling chamber is easy inspection and cleaning. Autolocking knob can be firmly closed.
8. Web Aligner 8.1 Main Features The web‐aligner actuator is driven by the cylinder, and the servo motor drives the rectifying device. Two chrome‐plated rolls, one on a fixed bracket and the other on the movable bracket. The edge of the paper is detected by 2 infrared sensors, and the servo motor electrical signal of the rectifying device is adjusting to keep center of paper in the middle between the two infrared sensors. Web‐aligner sensitive at 5mm from paper central point.
Optional 1 Paper Tractor Working principle ： The main traction roller diameter of 800mm, inter‐layered design. There is rotary joint and cooling water connects and cycling inside the big drum. The auxiliary tractor Roller diameter is 350mm, which is also inter‐layered design, cooling water or tab water connection.
Optional 2 Paper Cutter Working principle ： Sewing cutter gives high speed Scissor‐ Sheeter for melamine impregnated finishing. High precision feeding roller is driven by servo motor, it gives high accuracy in cutting length. Paper feeding rubber roller is controlled by 2 cylinders, and the bell‐shaped baffle is installed in the front, it keeps operation in a more safety. Paper feeding roller is driven by a deceleration motor. Sewing cutting sheeter controls by servo motor, the bottom knife blade erection is cylinder control, and it contains blade gap adjustment device. To avoid paper sliding in feeding position, a air blower is built-in. Cutting accuracy under 35m/min: ±1mm/1000mm. High precision code device is equipped with Shield cable Transferring, no symbol disturbance.
Optional 3 Conveyor and Stacker Working principle ： 1+1 conveyor enhanced operating convenient and working efficiency; stacker with self-lifting device, matching paper stacking height.
On-site Installtion
Sucessful Project
FAQ: Q1：Who we are?
A1：Nantong Ruiya Electromechanical provides complete solutions for the impregnation and lamination industries. Our products cover impregnation, lamination, electronic materials CCL, AL-CCL, carbon crystal plates, mica plates and other composite materials industries. We have 20 years of production and export experience, and our equipment is exported to Russia, the Middle East, India, Pakistan and other regions.
Q2: Why choose us?
A2:1.We will consider various factors from the perspectives of site, production volume, energy conservation and environmental protection, and provide a complete design solution. 2.We have a technical team led by 5 senior engineers to discuss and solve various technical problems in a timely manner. 3.Complete pre-sales and after-sales supply chain, supporting on-site installation.
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Mr. Matthew Bao
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2. Impregnator
