Composition and technical analysis of printing slotting die cutting machine
Announcer:Wecan Time:2017-05-17
The working principle of die cutting machine is the use of steel, steel (steel wire or carved into the template), applying certain pressure by stamping version, printing or cardboard rolling cut to shape. If the printing press into a single graphic product called die-cutting; use steel wire in the printing press or left traces of angled slot called indentation; if the use of the Yin and Yang of the two block template, in the printing surface embossed with stereoscopic effect pattern called concave imprint, as can be referred to as die-cutting technology.
Printing slotting die-cutting machine die cutting machine is one of them, it will be multi-color printing, slotting indentation, die-cutting forming feature set in one, for the packaging industry in paper products, paper boxes, greeting cards and other trademarks of the die-cutting, indentation and cold pressed forming operations, is an important equipment for packaging and processing.
General model
The printing slotting die cutting machine usually consists of the following parts,
(1) feeding part: the electric control part adopts PLC, touch screen and frequency converter. The operator can set the length, width and other related data of the paper on the touch screen, adjust the position of the front baffle and the side baffle plate, and make the subsequent parts accurately positioned so as to achieve good printing and die-cutting effect.
(2) printing department: made up of several monochrome printing parts, all adopt PLC and touch screen control. The original color after electronic color separation plate into negative image, and then through the printing ink from the printing machine, printing machine roller will be transferred to the printing plate, then transfer ink from the printing plate to corrugated board. The positive image can be obtained by color matching and folding, and the copy of the original sample case can be realized. The printing position can be adjusted on the touch screen, and the depth of the press roller, etc..
(3) slotting Department: the process of pressing and grooving the printed boards. Each tool position is adjustable by touch screen.
(4) die cutting department: die cutting phase can be adjusted by touch screen settings, controlled by the PLC program, with high-speed pulse count, to achieve accurate mold opening effect.
Technical difficulty
By the function of the printing slotting die cutting machine, it puts forward the following challenges for the adopted PLC.
(1) location detection is more, and the position signal is given to PLC by encoder, so the number of PLC high-speed counters is required. If there are 6 encoders in the feed section, there are 8 encoders at each station of the printing department, each with 7 slots and a die cutting section. Although the frequency of the feedback pulse is not high, the general counter is not competent.
(2) data communication is necessary between stations, such as fault information of each station, position parameter and current value, production parameter, interlocking signal, etc.. These data are sent and receive, some are between the main station and the slave station, and some are between the slave station and the slave station. Therefore, the communication part of the control program design is a difficult point.
(3) all stations need to control the frequency converter, usually controlled by means of communication. Therefore, there is a requirement for the number of communication ports.
(4) a large amount of procedures.
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