Controller for opening of ink key
A controller and ink key technology, used in printing, printing machines, general parts of printing machinery, etc., can solve the problem of printing quality, and achieve the effect of reducing scrap rate, shortening production preparation time, and fast response speed.
Inactive Publication Date: 2012-09-19
上海矩奉电机自动化有限公司
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Problems solved by technology
However, in the domestic existing technology, the control of the ink keys in most rotary presses and offset printing machines mainly depends on the manual adjustment of the operator, so the printing quality depends on the technical level and experience of the operator
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[0019] The present invention will be further described below in conjunction with the embodiments and the accompanying drawings.
[0020] refer to figure 1 with figure 2 , the present invention includes a CAN (Controller Area Network) driving circuit, a single-chip microcomputer PIC, and at least one motor driving circuit.
[0021] The single-chip microcomputer PIC of the present invention is connected to the CAN bus through the CAN driving circuit, accepts the driving instructions of the upper control machine connected with the CAN bus and the control console, and simultaneously feeds back the ink key opening degree information.
[0022] In the present invention, usually each ink key opening controller can control 20 ink key openings of each ink fountain, so as to ensure reasonable distribution of ink volumes in different ink areas of each ink fountain. In this embodiment, 20 motor driving circuits are provided, that is, the motor driving circuit 1 to the motor driving circ...
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The invention relates to a controller for opening of an ink key. The controller comprises a CAN (controller area network) drive circuit, a single chip and at least a motor drive circuit, wherein the single chip is connected with a CAN bus through the CAN drive circuit and is capable of receiving drive instructions of an upper controller and a control console connected with the CAN bus and feeding back opening information of the ink key; one end of the motor drive circuit is connected with the single chip; and the other end of the motor drive circuit is connected with an ink key regulator. According to the invention, embedded control technology is used; and the single chip, a CAN bus drive circuit and the motor drive circuit are used as controllers and are capable of controlling an ink key opening motor of the ink key regulator to regulate opening of each ink key of an ink fountain and feeding back a signal through a position sensor of the ink key regulator; and therefore, the control for the opening of each ink key is realized in a closed loop manner in real time; precision of opening of the ink key can reach to 0.5%; so that precise regulation of ink quantity is ensured; and a current situation of manual control is changed.
Description
technical field [0001] The invention relates to equipment in an ink key automatic control system of a printing machine, in particular to an ink key opening controller. Background technique [0002] With the development of computer technology, embedded technology and network technology, people have higher and higher requirements on the quality of printed matter, the production efficiency of printing and the degree of automation. Many new ideas, new technologies, and new structures have been introduced into the production and manufacture of printing equipment. [0003] Ink key automatic control system is the core equipment of rotary press and offset printing machine. It can analyze and control the relationship between ink key opening and ink flow in combination with printing process, greatly improve ink volume control accuracy, shorten production preparation time and reduce production cost. However, in the domestic prior art, the control of the ink keys in most rotary presses...
Claims
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Inventor 贺俊高勤
Owner 上海矩奉电机自动化有限公司