We summarized the common printing a safety hazard:
1, the safe hidden trouble that bad operating habits
For all the security hidden danger, harm is the most powerful, the concealment of the at the same time it also is the highest, overcome index is the most difficult. More than 90% of the operator is due to the operation is not carried out in accordance with the requirements in the process of operation that caused the accident. Here we will list some common bad habits, so that a wake-up call for everyone.
A. plate (rubber cloth) used to operate: general rotary press plate is more, the operator is used to hang version of two or more groups at the same time, in order to save time, improve work efficiency. Sheet-fed offset press plate also have this kind of phenomenon. Interim plate, in order to speed up the progress, and the teacher is to help, that is one version, one point switch. Safe hidden trouble, plate (rubber cloth), if two or more people operate at the same time, a bit not concentrating, hand skid or unexpected machine problems, it is easy to finger involved, cause personal injury.
Preventive measures:
(1) version of work by one operator, with the hand gently knead plate towing pin and gasket, make sure that pages are not scratch and liner level off, (2) the plate one thousand mistakes or meet "electricity", hand to loosening, don't hold the plate, will not have much loss, if hold, will cause other accidents.
(3) the situation is different for all kinds of machines. If you really need to use hand push plate, can put some talcum powder on the layout, the prevention of accidents.
2. Spade ink used to operate, due to the need of distributing, the operator used with ink shovel movement back and forth on the ink roller, distributing, add ink or shoveled away excess ink ink roller. Safe hidden trouble, when in high speed operation, this belongs to the frequent accidents of dangerous operation, once the ink blade Angle pin offset or operation of the ink shovel met series of ink roller surface uneven, ink shovel will be involved in the main series of ink roll and rubber roll and accident, between light scratch plate or rubber roller, or rolling bad blanket or drum, even in the drawing ink shovel the accidents caused by the controls in a flash.
Preventive measures:
(1) the first thing to heel, focused, hold the ink scraper, don't look in all directions.
(2) find print ink quantity is not enough and must be manually add ink, ink scraper must hold in the hand, and to raise the little ink roller, after waiting for the roller stopped again.
(3) to shovel the ink, the ink shovel to, which is based on the main series of ink roller, conveniently depend on the rubber roller, an impending, ink scraper with bunch of ink roller contact Angle is not less than 45 °.
3. In addition to the dirty habits operation: rotary press and sheet-fed offset printing presses, often appear leather or rubber roller ink, paper, cast in plate picture and text part of the phenomenon. Affect the quality of the product. At this point, the operator is often used in the machine is running to remove dirty fingers.
A safety hazard: this belongs to the illegal operation of dangerous operations, resulting in the printing of the accident. Under the condition of the high speed machine operators to get dirty point location and erasure, available time is quite short, and the strength not wipe off, only to start early, take strong to stick it on the plate dirty point on the graphic (or ink roller) removed. A slight mistake, finger are likely to enter the plate cylinder space. If it is hung up without relying on the operation, is likely to be brought into the cylinder with one hand, the accident caused by the rolling hand.
Preventive measures:
(1) a week regular inspection of the machine all the safety insurance device and main motor brake mechanism. Make sure the machine sensitive, reliable, and found that the problem timely repair.
(2) the operation is to focus, not suspended operations, wipe dirty, palms must rely on between the plate cylinder and rubber drum of the shaft, or on the water roller protection safety hood, pay special attention to the palm relying on the force should be greater than the force of finger wipe dirty point.
(3) if the dirty point much effect on printing, should stop check and timely replacement of rubber roller or paper, ink, fundamentally solve the problem. In the daily production, must establish the idea of safety first, cultivate good habits of operation, or in the event of accident, the product quality and economic benefit etc. Everything will be impossible. So, bad operation habits is the biggest killer of safe hidden trouble. (Gold Printing Group) |
