The gravure printing machine is mainly used for the printing equipment of soft and hard cigarettes and strips of paper. The unwinding part of the machine adopts the cantilever type air-up shaft charging form, which facilitates the loading and unwinding of the paper, reduces the labor intensity and shortens the preparation time; The quick-connecting paper device realizes the seamless docking of new and old materials, and lays a good foundation for the smooth operation of the subsequent process printing, cross-cutting, indentation drilling, embossing, die-cutting, etc.; the storage device ensures sufficient storage The length of the material makes the equipment work normally when the paper is picked up at zero speed without slowing down or stopping;
The printing unit adopts the lower feeding mode, which makes the machine structure compact, the feeding route is shortened, the scrap rate is reduced, the unit is independent servo drive, the overprinting is quick response, and the side pull type roller car sets the scraper, the ink tank and the plate roller in one, saving The change of the single time; the constant material length direct pressure type embossing roller device, the electric material feeding design is fast and convenient; the cutter roller and the transverse traction of the transverse unit are directly driven by the servo to ensure the tension at the broken section is stable and the breaking precision is accurate; There is independent correction before the break, which ensures the accurate left and right material position. The pneumatic garden knife trims the excess material edge and automatically collects the paper lifting platform to collect the broken sheet. This article will introduce you to the gravure press rankings.
The gravure press blade should be placed at an appropriate height. The blade should be adjusted according to the printing speed. The printing speed is fast, the distance from the embossing point is far, the printing speed is slow, and the embossing point is closer.
The tension control of the unwinding tension zone of the gravure printing press is mainly performed by the uncoiler. Tension control is a main function of the uncoiler, so the control principle of the tension zone is consistent with the working principle of the uncoiler. The clutch, tension roller and tension controller form a closed-loop control system.
During the printing process, the paper is not easy to be separated, the paper on the delivery table is not properly received, or the paper on the paper feeding table is skewed and the overprinting is not allowed, etc., which may be caused by static electricity. To eliminate printing static electricity, a static eliminator is generally installed on the printing machine to ionize the air around the printing machine, thereby neutralizing the positive and negative static electricity on the paper. It is also possible to spray an appropriate amount of water mist around the gravure printing machine or behind the impression cylinder to remove static electricity from the paper. In addition, increasing the humidity in the printing shop is conducive to the elimination of static electricity.
There are several ways to solve the pollution problem caused by the gravure printing machine. Each method should be considered in terms of cost and resource consumption. Printers need to establish partnerships with their major source material suppliers so that suppliers can provide the technical support they need in a timely manner to ensure the quality of their products while minimizing pollution and waste. Use a shallower ink tank and improved scraper technology to reduce the amount of ink used. The steam recovery system is the largest method to reduce solvent-based contamination.
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