On October 22, Xi'an, the autumn was high.
After the opening ceremony, we started the equipment demonstration that everyone was looking forward to.
The first demonstration was a CINOVA satellite flexo press
，现场演示的薄膜是19um的BOPP薄膜，是华阳针对软包装行业专门研发生产的电子轴印刷机，Huayang demonstrated on site. The film demonstrated on the site is a 19um BOPP film. It is an electronic shaft printing machine specially developed and produced by Huayang for the flexible packaging industry
The device's overprint accuracy reaches ≤ ± 0.1mm in longitudinal direction (automatic registration system tracking), ≤ ± 0.1mm in transverse direction (automatic registration system tracking), the maximum mechanical speed is 300m / min, and it can reach 250 m / min during live demonstration.
The equipment runs smoothly and the noise is low, below 85dB, which demonstrates the strong technical strength of Aerospace Huayang.
According to reports, the aircraft also has the following highlights:
Double unwinding shaft is driven by independent frequency conversion motor;
Floating roller tension detection system;
Independent tension closed-loop control;
Automatically calculate the roll diameter, automatically alarm when the setting is reached, remind the roll change;
The clutch and the pressure of the flexible roller are adjusted by pneumatic components;
The swing roller tension detection participates in closed-loop control, and the feedback signal is sent by the linear potentiometer;
Equipped with static elimination device (static brush);
The printing plate roller adopts shaftless pneumatic plate loading, which has high plate changing efficiency. The horizontal installation of the scale can ensure the initial position of the plate roller is uniform;
Each color printing plate roller is driven by a servo motor;
Double-sided adjustable guide rollers can correct the slight deviations of the material film and the plate roller, and there are indication hand wheels for easy adjustment;
The pressing structure of the embossing roller is a swing-arm type, which ensures that the change in the length of the material caused by the pressing and rising is minimized;
The embossing roller is of the through shaft type, which can be replaced quickly, and the embossing roller can be locked when the machine is stopped;
When the pressure rollers are pressed together, it will automatically operate in sequence.
The scraper device is a box-type scraper with three-direction adjustment structure to create the best scraper position and angle;
The ink supply method is the transfer roller method, the cylinder is outside the wall plate, and the transmission is adjusted by a separate frequency conversion motor;
The ink fountain is self-returning open, and it can be adjusted manually by lifting up and down.
The width of the equipment is 1.1m, the running speed is 300m / min, and the substrate is coated with PET. This equipment uses natural gas heating, which can save 30% ~ 40% of operating costs compared with traditional electric heating and oil heating.
The equipment adopts anilox roller coating. It is equipped with two anilox roller coating units. The first coating unit is equipped with a closed doctor blade and the second coating unit is equipped with a doctor blade cart. Achieve direct or indirect coating.
The device has two main highlights:
Live demonstration of high-speed automatic cutting.
After the equipment operating speed was first increased to 200m / min, the unwinding of 200m / min unwinding was first demonstrated. Unwinding unit adopts double station disc form.
Then demonstrated 300m / min non-stop receiving material.
When the equipment is running at high speed, the thin material runs extremely smoothly and the tension is very stable.
Unwinding at full speed without stopping the material successfully demonstrated.
The next step is to demonstrate full-speed rewinding.
The entrance of the winding unit is equipped with an active flattening roller and has two working modes: pressure mode and gap mode.
The rewinding unit is also equipped with a built-in pressure roller to prevent the film from deviating when running at high speed. There are two types of rewinding taper attenuation modes, one is linear attenuation and the other is curve attenuation.
Seeing is believing, directly watch the JMTB-1100 ribbon coating machine 300m / min automatic shutdown video:
Afternoon technical exchange activities were held at Tianyufield International Hotel in Shaanxi.
，柔印的色域比凹印的色域小，因此在实地印刷上比凹印逊色，在演讲中，王总重点介绍了的解决办法： Editor Wang first introduced the difference between flexo and gravure. Their fundamental differences are in the . The of flexo is smaller than the color gamut of gravure, so it is inferior to gravure on the field. In his speech, President Wang focused on the solution of :
问题； 1. Solve the problem ofby adjusting the flexo prepress and printing plate;
2. Ink solution, improve the high-concentration chromaticity, resolubility, leveling, solvent residual performance and drying gradient of the ink;
3. Anilox roller solution: use anilox roller with high line count and high ink volume;
，采用新的雕刻技术； 4.adopts new engraving technology;
5, the solution of the middle tone: (1) screening, (2) matte surface, (3) side control technology.
Then Mr. Wang introduced the development trend of global satellite flexo presses in 2019:
The related technologies include: servo drive technology; fast speed up and down and maintain the accuracy of color registration, such as direct drive using a central impression roller; use of a closed ink chamber system to prevent flying ink problems at high speed; larger perimeter network Anilox roller to reduce the speed of anilox roller and prevent the anilox roller from being scratched.
Related technologies include: thickened wallboard or monolithic wallboard; carbon fiber mandrel; low damping color group pressure control; printing plate roller drive motor torque pre-adjustment;
Related technologies include: sleeve printing plate rolls and sleeve anilox rolls; quick-change blade racks; ink fast cleaning system; ink automatic viscosity, pH value, temperature control system; automatic pressure, automatic color registration system ; Color matching center; robot system; equipment miniaturization.
Related technologies include: Industry 4.0; Print Quality Inspection System; Cloud Data; Intelligent Analysis of Order Production Management Data; Video Image Recognition; Augmented Reality (AR) Technology to Assist Remote After-Sales Service.
In 2004, Huayang Company and Italy's Flexo Gounp Company reached an agreement to produce satellite flexographic printing presses, and subsequently launched the first satellite flexographic printing press in China. Over the years, Huayang has continuously innovated independently, has the courage to make breakthroughs, and has taken the lead in flexo printing.
塑料软包卫星式柔版印刷机的性能及技术优势。 Director Li introduced the technical achievements in the field of flexo printing in Huayang in detail, and introduced the performance and technical advantages of the newly launchedplastic soft-pack satellite flexographic printing machine.
采用成套控制及伺服驱动系统,并集结了华阳以下技术：adopts a complete set of control and servo drive system, and integrates the following technologies of Huayang:
• Anilox roller and printing plate adopt cantilever beam sleeve structure
• Constant temperature controlled central impression cylinder
• Stable, easy to replace closed ink chamber
• Rewinding and rewinding without stopping the machine (auxiliary roll-up platform mechanism)
• Production order management system
• Convenient pre-registration system
• Servo pressure control and pre-adjustment system
• Variable frequency adjustable hot air drying system
• Ink line control and automatic cleaning system
• Volatile gas collection device
• System failure automatic monitoring system
• Remote diagnosis and maintenance system
Mr. Han first introduced the application status and development trend of digital printing, and analyzed the main factors that the Chinese market can support the development of digital printing, including:
Huge consumer market
High-end equipment manufacturing level;
Adequate supporting capabilities;
The increase in the amount of use will further reduce the cost of stimulation and promote each other. It can replace traditional printing in certain areas.
Especially under the conditions that the printing process meets, when printing small orders of kilometers and 10,000 meters, the advantages of digital printing are obvious.
President Han believes that digital printing presses suitable for the packaging industry should meet at least the following conditions:
650mm width can be suitable for packaging field (suitable model);
Multi-color printing at once, multiple sets of overprint (printing effect);
Cost-effective EPSON fifth-generation micro-piezo print head (input cost);
Open ink supply system (cost of use).
可用于彩盒、药包、标签及印刷书刊等。 Based on an in-depth understanding of digital printing applications, Huayang has developed thewhich can be used in color boxes, medicine bags, labels and printed books. President Han introduced the performance and application prospects of this device in detail.
Mr. Ni first introduced the performance and application points of several new products that comply with environmental protection requirements of DIC, including flexo printing inks that support flexible packaging and printing composites, GPL / SUNESTER high-density and low-viscosity flexo printing inks, and introduced Requirements for inks in the era of high-speed printing.
In the era of circular economy, DIC has also developed an , Can achieve lightweight packaging, extend the shelf life, and achieve plastic reduction.
SunBar series barrier coatings can provide excellent product performance and environmental protection, improve oxygen barrier (other gases) and extend the shelf life, block aroma and odor (mineral oil), lightweight packaging, can replace metal-containing materials, increase Packaging recyclability reduces costs and increases revenue.