Monitoring device
A technology for monitoring equipment and equipment, which is applied to material inspection products, instruments, analytical materials, etc., and can solve problems such as difficulty in installing monitoring equipment, inconvenient use, and poor shooting conditions.
Inactive Publication Date: 2004-06-02
MITSUBISHI HEAVY IND LTD +1
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Problems solved by technology
[0005] However, with the above-mentioned method, a plurality of cameras are used to monitor the release point across the entire width of the moving tape, so if the shooting conditions are deteriorated due to the generation of a large amount of dust near the monitoring site, the entire release point cannot be monitored. A change in the point width that determines its amount
Moreover, since the monitoring equipment will be installed on both sides of the surface of the sports tape, if the installation space is not enough, it will be difficult to install the monitoring equipment in practice.
Although this method is superior in monitoring using emitted light that can provide a clear image, it is not convenient to use in practice
Method used
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[0021] An embodiment of a monitoring device according to the present invention will be described below with reference to the accompanying drawings.
[0022] An example is given below in which an embodiment of the monitoring device according to the invention is used in a paper machine. In this example, the monitoring device monitors the operating status of the paper machine.
[0023] A paper machine generally includes a feed port, a wire part, a press part, and a dryer part. Also, the typical paper machine has a calender part and a reel part. As an example, in this example, a papermaking process of a four-roll paper machine will be briefly described. The selected slurry is sprayed from the feed port to the circulating net. The resulting pulp is drained in a suction box and pressed through a slice of uniform thickness. In the extrusion zone, the paper felt is combined with the extrusion roller and rolled up, while the water is squeezed out, and the surface of the paper is sm...
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A monitoring apparatus is provided which can ensure the prevention of a paper break even in a poor installation environment. A light source (9) illuminates light (9a) on a lateral edge (1a) of wet paper (1) and a camera (5) captures light (9b) reflected therefrom. The camera (5) is a micro camera and completely covered by a camera box (10). The camera box (10) has an observation window (10a) which is made of a transparent member, at the lens side (5a) of the camera (5). The outer surface of the observation window (10a) is coated and an air curtain (12a) that flows from above to below prevents staining caused by mist. The air curtain (12a) is formed in such a manner that air that is continuously supplied inside a cover (11) flows along the outer surface of the observation window (10a) from an opening portion (11a). A color image obtained by the camera (5) is subjected to image processing in an image processing device (6) and the resulting image is projected on a monitor TV (7), so that variations of the release point (3) can be monitored. This allows for forecasting of a machine abnormality leading to a paper break.
Description
technical field [0001] The invention relates to a monitoring device for monitoring a continuously moving web object and to a monitoring device for monitoring a paper web flow such as a paper machine. Background technique [0002] For the existing paper machine, during its operation, the operator regularly inspects and monitors to check the operating status, so as to ensure the stable operation of the machine. In order to detect the occurrence of a web break, for example, a web break detection sensor is installed on the machine, which consists of an infrared emitter mounted on the viewing side of the moving web and an infrared transmitter located on the opposite side of the moving paper. orientation sensor. When a tape break occurs, the sensor detects the infrared light, so the tape break can be detected. [0003] Although the occurrence of a tape break can be detected with such a tape break detection sensor, the cause cannot be determined. Therefore, in recent years, inst...
Claims
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IPC IPC(8): D21F7/04G01N21/89G01N33/34
CPCD21F7/04G01N21/8903Y10S162/10G01N33/34
Inventor 山下博铃木节夫岩田弘德留利弘小川正幸小高功加来正年獭越久男
Owner MITSUBISHI HEAVY IND LTD