Slimming Machine,Ems Sculpting Machine,Ems Sculpting Xi'an Double H Health Technology Co., Ltd , https://www.xadoubleh.com
1. Attention to dust, clean die-cutting machine in the work of a large number of waste paper edge, paper hair, little attention will be mistaken into the chain drive, die-cutting part of the moving platform and some rotating, moving parts, and block the photoelectric detection head, etc. Caused by the failure, so the body cleaning of the die-cutting machine must be placed first.
2. Oil change and refueling die-cutting machines must have good lubrication and cooling during high-speed work (6000 sheets/hour). Be sure to select a high-quality engine oil (such as shell Omara 100) to protect the main drive position of the die cutter. In addition, there is an intermittent mechanism box on the transmission side of the machine (intermittent mechanism of ternary burst wheel), where the oil used is more sticky (such as shell Omara 220). After the new machine starts operation, the main drive part and the mechanism box should be completely replaced after 3 months, and should be changed once a year thereafter. Other parts of the oil are the same as general printing presses, so we will not talk about them here.
3. Common Troubleshooting 1) Mechanical Failure: Automatic flattening die cutting machine often has the problem of moving platform pressure deflection, mostly caused by foreign objects falling into the die cutting. Generally, the position of the wedge block under the shaft is first reported, and the moving platform is rotated to the upper limit point to monitor its relative position with the upper stationary platform to ensure the four corners of the platform and the upper static platform (place where the cutting blade is clamped). Equidistance between them will solve the problem.
2) Electrical faults: PLC control is used for the automatic die-cutting machine center control. The main detection points, electrical switches and output actions are issued by the PLC, and its internal program is a ladder logic diagram, so when the electrical problems, Maintenance personnel must first read the ladder logic diagram, and then find the cause of the fault is simple.
Reasons and Causes for the Deformation of Pleated Printed Paper The pleat deformation caused by lithographic printing is a common failure. It not only causes troubles in the process, but also seriously affects the accuracy of overprinting and destroys the structure of the entire screen. Inconstancy of ink occurs, and even printing cannot be performed, delaying the delivery deadline. The following is the analysis of the main reasons for paper dishing.
Deformation of paper pleats, according to the basic state with large pleats and small pleats, as well as straight folds and branch folds. Most of the positions on paper are in the mouth, middle part, and tip of the paper. There are many reasons for this, and there are two things to sum up: on the one hand, due to mechanical reasons, due to improper roller pressure; on the other hand, the cause of the paper itself. Specifically, there are mainly the following factors:
1. Uneven distribution of paper moisture content is the main cause of paper wrinkle deformation. Four sides of the water content greater than the middle (wave deformation), will produce a wrinkle part of the fold; if the four sides of the water content is less than the middle (tight edge deformation), it will produce the middle part of the fold.
2. Paper feeding pressure in the paper feeding station is uneven. The paper-pushing wheel is a device that controls the leveling and constant-speed positioning of the conveying paper. Due to the unequal adjustment of the pressure of each wheel, the paper will be affected by the axial force in the conveying process, causing the paper to bulge in the middle of the printing, thus causing dragging. Pleat deformation at the tip.
3. The unevenness of the impression cylinder gripper. Roller grippers should be strong, and each tooth should have equal force. If the force of the decayed tooth is insufficient, it will produce a wrinkle deformation. If there is not enough force on one side, the corresponding trailing fold deforms.
4. The pad is uneven and the difference is too large. The paper is wavy when it is tamped with tusks, resulting in short-distance pleat deformation closer to the gargle.
5. Paper is improperly handed over. In the transfer process before the imprinting, if the length of the crepe edge is changed, the middle folds of the paper are easily deformed and even the edges of the paper are broken.
6. Knock paper marks too deep. Because of the deep and dense traces, the paper wrinkles are formed on the pleats of the knocked paper.
7. The corner of the paper is in the half-finger position. After the paper is positioned, the corners of the paper are half-toothed or less by the rollers, so that the paper angle is often uneven and a crepe paper wrinkle deformation occurs on the edges of the paper.
8. Paper fibers are aligned. When the paper is imprinted into the host machine, the fibers are aligned in a straight line, which can easily cause deformation of the skein.
Once the paper has wrinkled deformation, you can find the main reason based on the above analysis. In general, if it is a mechanical factor, the position of the paper pleats is basically fixed, and the pleats are repeated. Each lining in the printing produces lines. If it is caused by the factors of the paper itself, its position is often not fixed, and there are intervals. At the same time, it is also possible to use a test print test, which can turn the pleated paper of the batch or make a reflective impression, and can also print other paper for printing. Judging from the phenomenon of wrinkles, there are often changes in the factors of paper, and no change is caused by mechanical factors. If two or more machines are printed on the same type of paper, some machines are wrinkled, and some machines are not wrinkled. This is due to the factors of the machine. Find out the cause of the paper wrinkles after you start to solve, if the printing machine caused by the machine can be repeated adjustments, the right medicine. If the reason is due to paper, paperboard processing can be performed according to the paper's area, weight, type and sensitivity to humidity, product registration accuracy, etc. It is best to use air blasting, air blasting is not only short Can improve the printability in time, and can achieve the purpose of cleaning paper, dust removal, debris removal.
Automatic flattening die cutting machine maintenance points
Fully automatic flattening and die-cutting presses have been widely used in the packaging industry, but there are few information on their maintenance. Now, I have talked about my own experience in practical operation.