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(A Routine Analysis) Whether you print 72 or 7,200 sheets, the time of change is the same, and its speed has a direct impact on profits and costs. The smaller the number of prints, the more important this point (change speed) is; on the contrary, the longer the print job cycle, the greater the impact on profit is the operating speed; and the impact of downtime on short live and long live is the same of. In each fixed period of time, you should know what factors dominate the direction of things. If you are in a hurry, you should arrange the work process accurately and according to a certain method. Once established, the average operating cycle of the business is almost certain. What is easily overlooked in this process is that it does not take into account the factor of plate change, which makes the forecast appear biased. What is your actual plate change speed? If the answer is just an estimate, or a guess, then here is a simple but accurate way to learn how to work out an improved work plan. After each job is completed, some components on the machine need to be removed for cleaning, and then re-installed to prepare for the next job. Before using the automatic press, let's look at a few simple ways to speed up the installation. First, make sure that the number of each printhead is legible. Secondly, add black blocks (in order of ink color) on the printing side (inside corner) of each screen to monitor the quality of the printed matter. Such settings should be clearly visible and easy to understand, even if they are hands-on Easy to operate. Consider fixing the squeegee hardness tester as the three most common, and try not to limit yourself to devices that use the same durometer color code. You may not have time to tell a new employee what a squeegee hardness tester is, but if you mark on the screen the squeegee color you are going to use, there will be a good start. Let's assume a three-part printing operation group: operator/feeder, unloader, and dryer operator. Here, the key to operation is to allow all operators to operate in the most efficient manner. The on-boarder is often the most experienced (highest salary), but only temporarily participates in the process of disassembling the equipment. The emphasis is on participating in the next installation setup process. In fact, the disassembly process is a very simple repetitive operation that can be performed by trained unloaders and dryer operators, each requiring less than 60 seconds of screen time. Unfortunately, it is often these people involved in the dismantling delay the print preparation process, when the screen is still on the bracket, the squeegee scrapes the excess ink into the gaps of the screen, which is wasteful and inefficient. of. The press needs to remove the previous remaining material for the business as soon as possible in order to prepare for the next printing business. Therefore, the entire squeegee, overflow valve, screen should be removed from the press at the same time - before cleaning the equipment - using a special unloader to move in a single direction. The overflow valve and squeegee should lean against the end of the screen and they should be stacked together at 45 degrees to clean the instrument under the screen. Once these components have been moved, the unloading vehicle will be full, which will allow the printer to free up some space. The transfer of ink will depend on manual assistance. If your factory has several automatic printers, consider setting up a dedicated unloading station to do this. Sinks, plate holders, and the surface of the table are all made of stainless steel. It is recommended to use inexpensive items used in restaurants. You can also use industrial-specific squeegee/relief valve/parts. At the same time, turning back to printing, assembly operations have begun. Obviously, the film - like the screen version - should be authenticated, including the order of arrangement and the number of meshes, all of which are variable. In the case of changes in parameters, the film itself will not change. At this time, it is desirable to change the setting of the embossing section, which is also a principle used by the printing industry. If two or more people are involved in the assembly, things get a bit confusing. At this time, another power point of the screen should be pre-marked in a clear and accurate manner. The collaborators may not know exactly where the registration points are, but they will certainly understand that placing Screen No. 5 on the “No. 5†position, printing on PMS 123 yellow, requiring a red squeegee, etc. . After a simple study, you will be able to fill in an “Operational Time Calculation Form†where you need to enter the time limit for each screen's uninstall (60 seconds in this case, a reasonable target of 30-45 seconds). . After that, plus a deadline for the installation time of each screen (in this case, 4 minutes, but the new device is much smaller than this number). Finally, calculate the normal average time period for reaching the final print result. Remember, the true speed of change is the time between the last print of the previous business and the first qualifying print of the next business. Do not record false start times, use actual attainable figures, and then establish higher standards. Predicting the time of change is to know that there are several pieces to be disassembled, a few pieces to be installed, and then insert the corresponding figures in the form. If you feel that the added number can accurately reflect production, the last variable you need to adjust is the average operating speed. Then make a complete, stimulating plan. Proper work schedules are a prerequisite for great success.