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A Color Registration Error Transmission and Acquisition System

A technology for obtaining system and error, which is applied to the general parts of printing machinery, printing, printing machines, etc., can solve the problem that error signals are difficult to reproduce, and achieve the effect of saving costs and solving real-time problems

Active Publication Date: 2016-08-24
HANGZHOU SOTRY AUTOMATIC CONTROL TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, after many times of conversion and re-detection, the error signal is difficult to reproduce, and there is also a serious signal hysteresis

Method used

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  • A Color Registration Error Transmission and Acquisition System

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specific Embodiment approach

[0028] The error detection system of printing machine color registration is based on the number of color registration units, and each color uses a detection unit. The connection between each unit and the display terminal is usually connected by Can bus, and the commands and data between each unit are received and sent in real time. The protocol complies with CAN2.0A or CAN2.0B. The communication between the pc and each detection unit follows a certain protocol, and the content includes commands, status, and detection data.

[0029] Purchase a ready-made Can-to-Profibus-dp gateway on the market. In this embodiment, the pb-b-can of Beijing Dingshi Company and the pca-100 of Shanghai Sibo Company have been used successively, both of which can realize the required functions. . The gateway has a Can interface and a Profibus interface, which are respectively connected to the two buses, so that the two buses can communicate with each other. According to the respective instructions...

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Abstract

The invention discloses an overdying error transmission and acquiring system. The overdying error transmission and acquiring system comprises a CAN (controller area network) interface at a PC (personal computer) side, a detection unit box, a CAN conversion Profibus-dp gateway, and a PLC (programmable logic controller) with a Profibus interface, wherein the PCI bus of a PC is used for converting the CAN bus data by a CAN transreceiver; the detection unit box is used for obtaining precise error by the distance of a detection marker line of a photoelectric sensor; the CAN conversion Profibus-dp gateway is used as one site of the CAN bus, and reading the CAN bus data; the PLC with the Profibus interface is used for quickly reading the data coming from the CAN conversion bus, is used for data analysis and anatomy and provides the data for a tensions system for use. Through bus transmission, the CAN bus and the Profibus bus are connected by the gateway, and the protocol conversion is finished, so the signals such as printing errors are fast transmitted to a tension control system without any loss.

Description

technical field [0001] The invention belongs to the field of electronic shaft printing machine control in printing and packaging machinery, in particular to a transmission and acquisition system related to printing errors. Background technique [0002] In the traditional printing machine, each color group is connected by the main shaft to ensure the phase of the plate roller, and the tension is adjusted by the synchronous adjustment motor to eliminate printing errors. For this type of machine, there are several printing press registration systems in China, all of which use photoelectric signals to detect color registration errors, add control algorithms, control synchronous adjustment of motors, and complete accurate color registration functions. The most advanced foreign and domestic printing machines use a motor for each color group to drive the printing plate roller, and eliminate the color registration error by adjusting the phase of the motor, and cancel the synchronous...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41F33/00
Inventor 付洪标费加来朱群林蔡永斌张一清
Owner HANGZHOU SOTRY AUTOMATIC CONTROL TECH