CPC and cptronic system of the hottest Heidelberg

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Heidelberg offset press CPC and CP tronic system

cpc (computer print control) computer print control system is an extensible system, which is composed of ink feeding and registration remote control device cpc1, printing quality control device cpc2, plate image reading device cpc3, registration control device cpc4 and CP tronic (CP window) automatic monitoring and control system,

1- ink feeding and registration remote control device cpc1

(1) cpc1-01 is the basic control device, which remotely controls the ink feeding and registration through the button, including the remote control device of the area ink volume, the ink bucket roller ink strip width, and the axial and circumferential registration devices. In order to facilitate control, the ink supply device is equipped with 32 metering rollers along the axial direction of the ink bucket roller, which divides the ink feeding area into 32 small areas. The width of each metering roller is 32.5mm, and most of the middle of the metering roller is made into eccentric columns. The ink output in this area can be adjusted by rotating the metering ink roller through the micro motor to change the gap between the metering ink roller and the ink bucket roller

(2) the cpc-02 control device uses a light pen and buttons to adjust the ink volume quickly and locally, and has the function of storage and memory. Compared with cpc1-01, memory, processor, cassette tape and light pen are added. Using a light pen, the thickness of the ink layer and the width of the ink bar in the corresponding area can be input to the memory for recall; The cassette can also store the preset data provided by the cpc3 printing plate reading device

(3) compared with cpc-02, cpc-03 control device adds servo control and servo automatic control device. It is often used in combination with cpc2 printing quality control device. When combined, the ink layer thickness of each area measured by cpc2 device is converted into the adjustment value of ink feeding amount, which is displayed on the follow-up display of the console, and then corrected according to the deviation value. So as to quickly and accurately reach the standard value of qualified printed matter

2- printing quality control device cpc2

this device is a measuring device that uses the quality control strip to determine the quality standard of printed matter. Combined with the cpc-03 console, it can not only shorten the time required for replacing printed matter and reduce the waste of machine adjustment, but also convert the actual optical density value into the input data for controlling the ink feeding amount through the computer during printing, so as to ensure a highly stable printing quality

the synchronous measuring head of the CPC device scans all the color scales of the quality control strip within a few seconds, and compares the measured data (truthfully density, point increase, contrast, ghosting and ink overprint, tone deviation and gray degree, etc.) with the predetermined reference value, and the deviation value is adjusted by the cpc-03 device for each color ink bucket of the printing machine

cpc2 device can not only test various quality control tea on the printing sheet, but also control the quality of several printing machines printing different pieces at the same time. The specific information of the printed piece is stored in the floppy disk through the cpc2 terminal device in the way of dialogue. During the official printing, the test results of the maximum size printed piece can be displayed on the screen terminal in only 8s

cpc 2-s quality control device uses chromaticity measurement to replace the density measurement of the original CPC 2. It can not only carry out spectral measurement and spectrophotometric identification, but also calculate the ink control value of cpc1 device according to the gray, field, point and overlapping area of CPC measurement strip; Before printing, you can measure the measuring strip of the sample or the original, during the printing process, you can measure the quality control strip of the print, and you can directly convert the six colors measured from the original into spot colors; When used in combination with cpc1, it can best meet the requirements of controlling the ink dosage according to the measurement results. Li Chao, CMF design and development manager of Xiaomi Communication Technology Co., Ltd., pointed out in an interview with CPRJ China plastic and rubber magazine: "At CES exhibition this year.

3-printing plate image measuring and reading device cpc3.

this device uses the photoelectric measuring head controlled by the computer to measure the ink coverage area of each ink area of the printing plate, and stores the measured results on the cassette tape or prints them out. Before printing, the cpc1 control desk calls the measured values of the printing plate and other data stored on the cassette tape, and passes through cpc1-02 (or cpc1-03) These data are converted into the adjustment value of the gap between the metering ink roller and the ink bucket roller, which realizes the automatic adjustment of the ink volume and shortens the pre adjustment time

4-register control device cpc4

this device is a CPC dedicated register measurement and reading controller, which is used to measure the peripheral and horizontal register deviation of the printing sheet, automatically adjust the register, and display, store and print out the measurement results. When measuring, put the cpc4 device on the print, the crosshair registration error can be measured and recorded. Then, when the cpc4 device is located above the control panel of the cpc1 console, the stored data can be transmitted to cpc1 through the infrared ray only by operating the button, and the stepping motor can be driven by the cpc1 remote control device to adjust all the printing plate rollers to the calculated position

5-automatic monitoring and control system cptronic

CP tronic is a modular centralized control, monitoring and diagnosis system launched by Heidelberg company after CPC system. It can not only replace the traditional electromechanical control system, but also process and store the operation and production data of the printing machine; Control and monitor the whole printing machine (including paper feeding, paper receiving, ink feeding, wetting device, printing unit and other auxiliary equipment, such as the positioning and transmission of paper, the speed of suction roller, the opening point of the paper teeth in the tooth row, the control and adjustment of coating liquid and ink volume, the control and monitoring of the fountain process, etc.); display and query relevant data and information.

1-cp window has pre selection, operation status (actual value) display, Fault diagnosis, maintenance information indication and other functions

① there are four monitoring levels on the console, which can be selected according to the required functions, and the setting values related to the operation can be input, including the speed of the offset press, the predetermined number of prints, the amount of wetting solution and the cleaning time

② the display of the actual value can enable the operating workers to timely and clearly understand the actual operation status and printing progress in the printing production process. If necessary, it can also be manually adjusted directly in the printing process. At this time, the pre selection function will not be affected, and the relevant fixed value will be automatically realized in the operating procedure

③ in case of setting errors or unexpected faults (such as open protective plate, inaccurate paper positioning, etc.), the monitoring system of CP window will immediately send a signal to the console, and accurately point out the fault type, relevant parts and the cause of the fault on the display

④ according to the detection items, codes and the status of each component on the display, the maintenance parts and maintenance methods can be accurately determined for rapid maintenance

2-cp window can also control the automatic replacement and clamping plate printing device, automatically adjust the paper feeding, receiving and positioning parts, and automatically transport and replace the paper stack

① preset paper feeder (Feida) device: after inputting the paper size and thickness on the CP window console, it can complete the full-automatic adjustment of the printing sheet 9 Pre adjustment operation with too small gap between the damping needle and the damping hole of the oil delivery valve. On the paper feeder, the pre adjustment loading party will automatically move the suction head, transverse guide board, paper pressing roller and side gauge to the correct position. The misaligned paper and the horizontal position of the main feed stack and the backup stack are automatically corrected. The printing pressure and the height of the front gauge cover plate will be automatically adjusted to match the new paper thickness. On the painting performance paper table that will not damage the surface of the material, the horizontal paper board, format size limiter, suction roller, powder sprayer and other auxiliary devices will also be readjusted

② autoplate automatic plate loading device: open the plate clamp with compressed air, and then close it with a strong spring to firmly fix the printing plate in place. When changing the plate, first turn the plate cylinder to the appropriate position with the button command, then install the front edge of the plate into the registration system of the plate cylinder, press the button to close the plate clamp at the front, and the printer rotates the plate forward under pressure until the rear edge of the plate is pressed into the plate center of the rear edge of the cylinder. The whole operation is automatic, and there is no need to use tools or re tension. The deformation of the paper can be compensated by means of the split trailing edge plate holder

③ multiplate plate changing device: using the button command of CP window, all printing plates of six color speedpa offset press can be automatically changed within 4min

④ nonstop automatic paper stack replacement device without stopping

⑤ autopile automatic paper conveyor

6-cpc and CP tronic connection

after the CP window of Heidelberg offset press is connected with the CPC system, the full-automatic control of the printing process can be realized

① preparation of printing operation: ink pre adjustment, pre selection, programmed ink volume input, ink feeding volume and registration remote control, wetting liquid volume input, automatic registration control, input of printing paper size and thickness, pre adjustment of paper feeding and receiving machine, control of printing sheet transmission, etc

② formal printing process control: paper conveying and positioning control, automatic registration control, spectral color measurement and gray balance, central control and diagnosis, machine monitoring, etc

③ replacement operation control: automatic cleaning of ink roller, automatic washing of rubber drum, remote control adjustment of drum pressure, automatic adjustment of paper conveyor and paper receiving machine, automatic adjustment of positioning parts, automatic plate loading, and control of print quality with the measurement strip of proofing as the reference value

④ function and maintenance diagnosis: fault diagnosis, automatic centralized lubrication, preventive maintenance, interchangeable printed circuit boards, maintenance services, etc

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