JPH0623970A - Device for detecting erroneous setting of press plate for newspaper - Google Patents

Abstract

PURPOSE:To obtain a device for detecting the erroneous setting of a press plate for a newspaper, which can reduce the generation of spoilage to be caused after replacing a press plate and whose maintainace can be done simply, by providing a device for comparing printed information with printing information and deciding whether a press plate is correctly set on a roll of a predetermined printing unit, and a device for displaying and warning the result of decision. CONSTITUTION:While a CCD camera 1 set close to a guide roller 10 is being timing- controlled by an encoder 4, printed information in printed papers is read out, and an image signal obtained at that time is sent to an image processing device 5. The image signal sent from the CCD camera 1 is discriminated by the image processing device 5, and a discrimination signal of the printed information thus discriminated is sent to a decision device 6. Then, the decision device 6 compares the discrimination signal with printing information given in advance from a control device 7 provided on the upstream side of the decision device and decides whether a press plate is correctly set on a predetermined roll of a predetermined printing unit, and the result of decision is displayed on a displaying/warning device 8. Such a process is also performed by a CCD camera 2 in the same manner. In this way, the generation of spoilage which has been usually caused after replacing a press plate can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a newspaper plate erroneous mounting detection device.

[0002]

2. Description of the Related Art A newspaper rotary printing press is composed of a plurality of printing units. In each printing unit, a printing plate corresponding to the number of pages of a newspaper and a color plate (YMCK) is set at one time to perform printing. Be seen. At the newspaper printing factory where this newspaper rotary printing press is installed, the composition of the newspaper page will change over time, starting with the first edition. Also, the composition of the newspaper page is changed according to the area where the newspaper is delivered. Therefore, the plate is frequently exchanged. Then, whether or not the printing plate has been properly replaced is picked up from the printed newspaper coming out of the folding machine and visually confirmed by the operator.

Further, recently, there is also one in which an image pickup device is attached near the plate cylinder of the transfer machine to propose whether it is right or wrong by comparing it with the press controller information. However, in the above-mentioned means, there is almost no space to be installed in the actual rotary machine, so the equipment becomes complicated, and since the rotary machine operates near the plate cylinder, there is a considerable amount of ink mist (ink splash) and the humidity is considerably high. However, other operations such as maintenance (maintenance for sensor dirt and stable operation of equipment) will be a considerable burden on the operator.

[0004]

Conventionally, as described above, whether or not the printing plate has been properly replaced is picked up from the printed newspaper coming out of the folder and visually confirmed by the operator. Therefore, it takes a lot of time and a lot of wasted paper from the start of printing to the completion of confirmation after exchanging the printing plate, and it is impossible to make a reliable judgment, so defective paper may be delivered to the user. there were

The present invention has been proposed in view of the above problems, and its object is to reduce the amount of waste paper that has occurred after the printing plate is replaced, and to detect erroneous mounting of newspaper printing plates such as for maintenance. The point is to provide the device.

[0006]

In order to achieve the above-mentioned object, a newspaper plate erroneous mounting detection device of the present invention includes an image pickup device for picking up characters, symbols or figures of a printed matter of a newspaper rotary printing press, and A position control device of an image pickup device, an image processing device for identifying an image signal of a character, a symbol, or a graphic imaged by the image pickup device, and an identification signal of print information recognized by the image processing device are input to a storage device in advance. And a printing device provided by the upstream control device to determine whether or not the printing plate is correctly set on a predetermined roll of a predetermined printing unit, and a display for displaying / warning the result.・ Has a warning device.

The newspaper plate erroneous mounting detection device of the present invention is constructed as described above, and the position control device of the image pickup device controls one or more image pickup devices installed on the printed matter course while the printed matter is printed. Read the newspaper information (printing information) and send the image signal obtained at that time to the image processing device,
Here, the image signal is identified, and the identification signal of the identified print information (date, local version, etc.) is sent to the determination device, where the identification signal is input to the storage device in advance or is given from the upstream control device. It is determined by comparing with the printing information whether the printing plate is correctly set on a predetermined roll of a predetermined printing unit, and the result is displayed on a display / warning device.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a newspaper printing plate wrong mounting detection device of the present invention is shown in FIG.
1 and 2, one or more CCDs shown in FIGS. 1 and 2 for picking up characters, symbols and figures of a printed matter mounted near a guide roller of a printed matter course of each printing unit of a newspaper rotary printing press. With a camera (imaging device),
D cameras 1 and 2 are installed in the printed matter course. Further, 5 is an image processing device for identifying character, symbol and graphic image signals from the CCD cameras 1 and 2, and 6 is an image for identifying character, symbol and graphic image signals picked up by the CCD cameras 1 and 2. Whether the processing device and the identification signal such as the plate number recognized by the image processing device are compared with the printing information given from the upstream control device 7 in advance, and whether the printing plate is correctly set on a predetermined roll of a predetermined printing unit. A determination device 8 for determining whether or not is a display / warning device for displaying / warning the determination result.

Next, the operation of the newspaper plate erroneous mounting detection device shown in FIG. 1 will be specifically described. While the CCD camera 1 installed near the guide roller 10 is timing-controlled by the encoder 4, the print information of the printed matter is read and the image signal obtained at that time is sent to the image processing device 5, where the image from the CCD camera 1 is read. The signal is identified, and the identification signal of the identified printing information is sent to the determination device 6, where the identification signal is compared with the printing information given in advance from the upstream control device 7, and the predetermined roll of the predetermined printing unit is selected. Determine whether the plate has been set correctly and display the result.
It is displayed on the warning device 8. The above operation is performed by the CCD camera 2
But the same goes.

[0010]

As described above, the newspaper plate erroneous mounting detection device of the present invention includes an image pickup device for picking up characters, symbols or figures of a printed matter of a newspaper rotary printing press, a position control device for the image pickup device, and An image processing device for identifying an image signal of a character, a symbol, or a graphic imaged by the image capturing device, and one in which the identification signal of the print information recognized by the image processing device is input to the storage device in advance or provided from the upstream control device. And a display / warning device for displaying / warning the result of the determination, which determines whether or not the printing plate is correctly set on a predetermined roll of a predetermined printing unit by comparing the printing information. It is possible to promptly recognize whether or not the printing plate is properly set on the predetermined roll of the printing unit, and it is possible to reduce the waste paper generated after the printing plate is replaced.

[Brief description of drawings]

FIG. 1 is a conceptual view showing an embodiment of a newspaper plate erroneous mounting detection device according to the present invention.

[Explanation of symbols]

 1, 2 Imaging device 3 Position control device 4 Encoder 5 Image processing device 6 Judgment device 7 Upstream control device 8 Display / warning device 10 Guide roller 11 Printed matter

Claims (1)

[Claims] 1. An image pickup device for picking up characters, symbols or figures of a printed matter of a newspaper rotary printing press, a position control device for the image pickup device, and an image signal of the characters, symbols or figures picked up by the image pickup device. A predetermined roll of a predetermined printing unit by comparing the image processing apparatus for performing the identification signal of the print information recognized by the image processing apparatus with the storage device in advance or the printing information given from the upstream control device. An apparatus for erroneously mounting a newspaper printing plate, comprising: a determination device for determining whether or not a printing plate has been set correctly, and a display / warning device for displaying / warning the result.