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Enhanced Coating: High-Precision Micro-Concave Coater

Optical film coater series

Enhanced Coating: High-Precision Micro-Concave Coater

Enhanced Coating: High-Precision Micro-Concave Coater

  • Width of roll surface 500mm~1600mm
  • Coating method Micro-concave coating
  • Adaptive size Acrylic acid /UV light-cured adhesive/silicone oil/ceramic slurry, etc.
  • Scope of application Color changing film /OCA release film/window film /TAC/PVA optical polarizer
  • Suitable substrate PET/PETG, TPU, TAC, PVA etc.
  • Mechanical speed/coating speed Max.80m/min (Speed depends on process conditions)
  • Bellows length 28m
  • Adaptive winding diameter Max. Φ 800m
  • Coating thickness 5 μm/15μm/20μm/30μm
  • Oven structure Fully active roller arc oven.
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Micro-Concave Coater

The micro-concave coating machine is composed of unwinding, material storage, traction, corona, dust removal, micro-concave coating head, oven, deviation correction, material storage, winding, heating, air duct and control system, among which the coating head and oven runner are the core technologies. The working principle of the equipment is that the coiled PETG substrate is conveyed by the unwinding unit, and then enters the concave coating head unit through devices such as traction, corona, dust removal, etc., wherein the function of the coating head is to uniformly coat the slurry on the surface of the substrate, and the principle is that the film material is pressed above the ceramic concave roller through two small guide rails. Because the film material is in slight contact with the concave roller, and the concave roller is opposite to the conveying direction of the material, a thinner coating effect can be achieved, and then the film material enters an oven for drying, and at the outlet of the oven, the dried material is corrected, then cooled and dragged by a large roller, and finally the finished product is rolled; The unwinding storage rack and the winding storage rack are used for buffering during automatic tape connection, and the unwinding and winding materials are in a stopped state during automatic tape connection. The whole machine can be heated by electric heating, natural gas hot air heating, heat transfer oil heating, etc., and set up separate tuyere channels such as air inlet, return air and exhaust air to ensure that the air speed of each section can be adjusted automatically or manually, which can adapt to coating production under different processes.

Equipment advantages

Micro-Concave Coater

1. Inflatable shaft chuck adopts mechanical chuck mode, with compact structure, simple maintenance, wear resistance, strong bearing capacity and high reliability.

2. The structure of over-roller drive is optimized to reduce abnormal sound and improve the service life of bearings.

3. Double closed-loop tension control, tension swing roller adopts low friction cylinder and electric proportional valve, air pressure closed-loop control.

4. Innovative closed ink cartridge is suitable for high-speed coating, with coating consistency of ± 3% and coating speed of 200m/min.

5. Brand-new anti-wrinkle technology, according to the design of equipment path, various forms of flattening roller, arc flattening roller and spiral flattening roller are configured.

6. The temperature in the bellows is uniform, and the error is within ±2°C PID closed-loop adjustment is energy saving and environmental protection (electricity/steam/oil can be selected).

7. Through the fluid simulation of the bellows channel, the structure is optimized to ensure that the inner channel of the bellows has no dead angle and no vortex flow, and the wind speed fluctuates smoothly.

8. Carry out fluid simulation and optimize the structure of pipes and tuyeres to improve the utilization rate of hot air and save energy consumption.

9. The coating roller and comma scraper are designed with quick release structure, which is convenient for replacement, cleaning and maintenance.

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  • Customization ability

    1.Coating forms can be selected: Gravure coating with anilox roller, extrusion coating, etc.
    2.Number of coating heads: Single machine or multiple machines are suitable for different process applications.

  • Customization ability

    3.Coating substrate: PETG, PP, PE, PVC, PVA
    4.Width: 300mm~1900mm

  • Customization ability

    5.Speed: 50~120m/min
    6.Length of single oven: 2 ~ 5m/section

  • Customization ability

    7.Total length of oven: 4m ~ 48m
    8.Oven structure: Roller type, suspension type.

  • Customization ability

    9.Drying form: Hot air and UV curing.
    10.Unwinding structure: Single-station and double-station manual/automatic material receiving

Customization ability
Customization ability
Customization ability
Customization ability
Customization ability
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FAQS

I. Q: How fast is the production speed of optical film coating machine of Dongguan Pengjin Machinery Technology Co., Ltd in China? How is the stability?

1.The optical film coating machine produced by Dongguan Pengjin Machinery Technology Co., Ltd, Guangdong Province, People's Republic of China (PRC) adopts advanced innovative closed ink cartridges, which are specially suitable for high-speed coating applications, with coating consistency of ± 3% and coating speed of 200m/min, and its R&D capability and technological innovation level are in the leading position in the industry.

2.The optical film coating machine produced by Dongguan Pengjin Machinery Technology Co., Ltd adopts advanced coating technology, processing technology and control technology, strictly controls the assembly accuracy of parts, implements real-time control of machine linkage by digitalization and networking, and automatically adjusts the tension of each section in real time, so that the tension fluctuation is small and the film does not wrinkle, thus ensuring the overall operation stability of the equipment and making the coating effect meet or even exceed the requirements of customers.

Dongguan Pengjin Machinery Technology Co., Ltd has a strong R&D team, constantly bringing forth new ideas, absorbing more first-line field experience and ensuring the stability requirements of products. Therefore, the stability of optical film coating machines developed and produced by Pengzhi Machinery Technology has always been in the leading position in the industry.

II. If I need to buy a coater in China, what parameters and requirements should I provide?

A: 1. Your company can provide the material, thickness, width and coating type of the substrate film produced by coating, as well as the experimental data of warm coating thickness, dry coating thickness and drying time in your laboratory, or provide relevant coating parameters for us to conduct proofing test and get relevant parameters. In addition, we also need to know other relevant requirements of your company, such as dust removal, corona, thickness measurement, compounding and other related supporting operation processes. We design the scheme flow chart in combination with the above parameters and specific requirements. During this period, we need to communicate with your process engineers, production engineers and other personnel to confirm the flow chart and technical parameters when necessary.

III. What types of optical film coating machines are produced by Dongguan Pengjin Machinery Technology Co., Ltd?

A: There are several types of optical film coaters produced by Dongguan Pengjin Machinery Technology Co., Ltd, such as comma coater, concave coater, gravure coater with anilox roller, extrusion coater, etc., which are mainly used for coating films such as PET, PETG, PVC, PP, PE, etc., and have a wide range of industrial applications. For example, photosensitive dry film, OCA release film, protective film, car coat film, car window film, explosion-proof film, building window film, excimer skin sensitive film of home plate, photovoltaic back plate film, label film, food packaging film, food high barrier composite material, etc. The coatings are oily and water-based, and special coatings such as graphene.

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