In the die-cutting production, the roughening of the trimming is one of the common faults, and the reasons can be summarized as follows:
First, the cutting edge of the die cutter is deformed and dull
If the die-cutting pressure is too large, the number of die-cutting times increases, and there are sand grains on the semi-finished products, it is easy to deform and blunt the die-cutting blade edge, resulting in rough edges of the product. Therefore, the pressure at the edge of the die-cutting blade should be as small as possible so that the trimming material can be cut off. In addition, the deformed, dull die-cutting knives should be replaced in time to ensure a smooth cut of the product.
Second, the sponge strip is too hard and too thick, causing the cutting edge of the die cutter
If the sponge strip is too hard or too thick, it will inevitably produce a large pressing force on the edge of the die cutter when it is pressed, which will easily deform the edge of the die cutter, causing rough edges of the product. In this regard, a softer sponge strip should be chosen and the thickness of the sponge strip should be reduced as appropriate.
Third, the die-cutting plate is repeatedly patched
Adding pressure on the die-cutting plate to increase the pressure is a commonly used adjustment method in die-cutting production. However, after repeated feeding of the paper, the surface of the die-cutting plate will be uneven, the flatness will be poor, and the die-cutting will also cause The product is rough and trimmed.
4. There are knife marks on the die-cut base.
The die-cutting base plate has been used for a long time, and there are dense and knives on the surface, which is also likely to cause rough edges of the product. In this case, replace the new die-cutting plate.
After the web cross-cutting machine is finished, clean the dust and paper scraps on the equipment in time, check the cutter and the sharpening grinding wheel, drain the oil in the water purifier and the water in the gas storage tank, and check whether there is any abnormality in the running part. . Then, according to the instructions, cut off the power supply and maintain the computer operating system.
Do a good job of maintenance and maintenance. First of all, daily maintenance should be in place. The principle is to lubricate, clean, clean (no dust, no debris) in place to ensure that the sliding part of the equipment is in good condition. Followed by maintenance work, regular and irregular inspections of the rotating parts (especially for real-time monitoring of consumables).
Regular adjustments are made, regularly replaced, and detailed records are made to extend the life of the equipment. Regular cleaning and inspection of the electrical parts should be carried out in a timely manner to eliminate hidden dangers. Use high quality slitters and cross cutters. Improve the technical quality and level of the operator, and be responsible for the operation of the control part. No one can operate it without permission.
Cross-cutting machine is one of the important single machines of corrugated board production line. The cross-cutting machine has different mechanical control modes, and is divided into a mechanical cross-cutting machine and a computer-controlled cross-cutting machine. The computer cross-cutting machine is controlled by the industrial control computer. According to the set length, the cutter shaft is controlled to cut the cardboard, and the precision transmission of the mechanical part can control the cutting error within ±1mm. The computer controlled cross cutting machine has a spiral cutter cross cutter and a straight knife cross cutter. The spiral cutter cross-cutting machine is more suitable for high-speed cutting of thick cardboard, and the cutting paper is stable and the blade has a long service life.
The cross cutter is suitable for longitudinal and transverse slitting of various types of paper. Such as gold and silver cardboard, plain rainbow paper, laser laser security paper, white paper and all kinds of thin paper. Widely applicable to horizontal or vertical shearing of trademarks, cigarette labels, calendars, wine boxes, poker, paper-plastic composites.
Note for crosscutting machine:
First, we must do a good job of maintenance and maintenance.
First of all, daily maintenance should be in place. The principle is to lubricate, clean, clean (no dust, no debris) in place to ensure that the sliding part of the equipment is in good condition.
Secondly, it is maintenance work, and regular and irregular inspections of the rotating parts are required (especially for real-time monitoring of wearing parts). Regular adjustments are made, regularly replaced, and detailed records are made to extend the life of the equipment. Regular cleaning and inspection of the electrical parts should be carried out in a timely manner to eliminate hidden dangers.
Second, the use of high quality slitting knife and cross cutter.
Third, improve the technical quality and level of the operators, to the control part of the operation to be responsible for the person, without permission, no one can operat
Only when the cross-cutting machine is fundamentally solved in terms of technology can it be more stable. The balance machine used can accurately control the unbalanced grams in a narrow range, and the industrial difficulty coefficient is reduced. The selling price is also far lower than that of foreign products, so the domestic cross-cutting machine is in the domestic cross-cutting machine market. The proportion is increasing.
The first is the technical update. The creasing machine is a measure of whether a company is advanced and has market competitiveness. With the rapid development of the cross-cutting machine market, the core production technology application and R&D related to it will be Become the focus of attention in the industry.
Understanding the R&D trends, process equipment, technology applications and trends of core technology for cross-cutting machines at home and abroad is critical for companies to improve product specifications and improve market competitiveness. From the cross-cutting machine to the computer cross-cutting machine, this is a very important process.
The overall analysis of the market will determine a milestone in the future direction of the cross-cutting machine. The foreground part is from the application field of slitting machine products, downstream products, domestic and foreign production status, potential domestic manufacturers of embossing machines, foreign manufacturers and scale, domestic and international production trends, market conditions and forecasts, supply and demand analysis and forecast, domestic The demand manufacturers and contact methods have made a detailed discussion on the market conditions and development direction of the cross-cutting machine products, which can be used as an important decision-making reference for the development trend of the deep-cutting machine product deep processing technology.
The die-cutting machine is widely used in the production of the company. The die-cutting machine meets most domestic enterprises in the printing and packaging production. There is a kind of equipment that is efficient, safe and high-quality molded and molded. The advantages of the die-cutting machine are as follows: :
1. Main chain drive: high precision chain, superior performance
The main chain adopts high-precision heavy-duty chain, the chain length error is small, and the wear-resistant speed and tensile strength are high.
2. Die-cutting and indentation: imported parts, precise control
Bearings and electrical parts adopt imported brands, with accurate positioning, precise control and high precision cutting. More overload protection devices are used, which can be actively separated when an accidental overload occurs. The special die-cut plate frame can effectively prevent the die-cutting plate from sagging and falling off.
3.Electronic control part: adopt PLC control, safe and reliable
The PLC is centrally controlled and equipped with various safety protection devices. When a fault occurs, it can automatically stop and sound and light alarm, which truly realizes man-machine safety.
4. Main drive: bearing bush connection, running more stable
The worm gear drives the crankshaft connection to reduce the movement gap, avoiding impact with the worm gear, smooth operation and large die cutting pressure.