In the past development stage, the domestic gravure printing machine has made great progress in the following aspects, and has gradually integrated with developed countries and regions in Europe and America, and has gone hand in hand.
1. Reduce production preparation time and increase production efficiency
With the normalization of short-running jobs, controlling and continuously reducing production lead times is becoming increasingly important for flexible packaging companies.
In order to reduce production preparation time and improve production efficiency, domestic gravure printing machine manufacturers are eager to end users, increase scientific research and development efforts, accelerate industrialization steps, and develop a series of new technologies, such as sleeve-type rubber rollers, fast. Change scraper, shaftless drive, ventilated detachable high-efficiency energy-saving oven, multi-function service trolley, plate roller online automatic cleaning device, etc.
The development and application of these technologies has greatly promoted the reduction of total time and total cost. Through the use of the above technology, flexible packaging companies can control the change time of one hour or so, greatly improving the utilization rate of equipment.
2. Reduce material loss and save costs
With the advent of the meager profit era of the flexible packaging industry, the cost of materials such as substrates, inks and adhesives accounts for almost 75% of the price of flexible packaging. It can be seen that the increase or decrease of any kind of material consumption will have a great impact on the profit of flexible packaging enterprises. Therefore, it is necessary and feasible to ensure profit by reducing material loss.
In the process of gravure printing, the factors affecting material loss mainly include the following aspects: overprinting loss during the process of changing the order, overprinting loss during the process of refueling, overprinting loss during the process of lifting speed, and downtime maintenance loss caused by equipment failure. Additional loss of ink and solvent caused by the ink tank structure. For the above various losses, the following technologies can be used to solve the problem.
(1) Reduction measures of overprint loss during the change of order
The production management system (one-click recovery function) records the best printing status (printing tension, printing temperature, blade position, printing pressure, etc.) of each order in the past, and can be directly called when changing orders, which can greatly reduce the loss.
(2) Measures for reducing the overprint loss during the refueling process
1 Control the length of the tail in the high-speed non-stop cutting, ≤400mm is appropriate.
2 Optimize the cutter structure, upgrade the cutting motion control program, and reduce the tension change
3 Fully automatic cutting process, on the basis of ensuring the cutting success rate, make the residual material residual material ≤10m, reducing the waste of printing substrate.