The fiber laser marking machine mainly uses CO2 lasers. The advantages of this laser are: no need for cooling equipment during work, simple maintenance, ready to use after power-on, cheap price, long service life, high conversion efficiency, etc. The disadvantages are: the printing effect is not good enough, there is a lot of smoke and dust when printing plastic tubes, metals cannot be printed, and the printing lines become thicker when using long focal lengths. Another type of fiber laser is widely used. The advantages of this laser are: stable operation, long service life, high conversion efficiency, and thin printing lines. And the price has been reduced.

Impact marking cylinder:

The marking machine is composed of a single acting cylinder, and the header is equipped with a steel font. Through the high-speed movement of the cylinder, the steel font is impacted on the part to be marked. This type of marking machine has low investment cost, high degree of automation, and environmental protection. Very easy to integrate into automated production lines. It can mark many fields such as station number, serial number, product serial number, production date, etc. The number of steel fonts for a single marking can reach up to 40 fonts.

The marking force ranges from 1 ton to 8 tons, and each model can choose to print single letters, multiple letters, digital headers and other options. In addition, a position sensor switch can be installed according to customer needs, and the corresponding digital signal will be returned after each marking is completed. The daily maintenance cost of pneumatic stamping marking and cylinder marking is very low, except that the steel font needs to be replaced after a certain number of years of use. Others generally have very few problems.

Status quo:

With the development of the economy and the improvement of people’s living standards, every commodity in circulation needs to indicate the production date and shelf life and other related information. Packaging is the carrier of information, and labeling of commodities is the way to achieve it. Marking machine is a machine that adds labels on packages or products. It not only has an aesthetic effect, but more importantly, it can realize the tracking and management of product sales, especially in the pharmaceutical, food and other industries. If there is any abnormality, it can be accurately and timely launched a product recall mechanism. Marking machines are an indispensable part of modern packaging. The types of labeling machines produced in China are gradually increasing, and the technical level has also been greatly improved. It has changed from the backward situation of manual and semi-automatic labeling to the pattern of automatic marking machines occupying the vast market.

Application:

Fiber laser marking machine can engrave a variety of non-metallic materials. Used in clothing accessories, pharmaceutical packaging, wine packaging, architectural ceramics, beverage packaging, fabric cutting, rubber products, shell nameplates, craft gifts, electronic components, leather and other industries.

It can engrave metal and various non-metallic materials. It is more suitable for the processing of some products that require fine and high precision. Used in electronic components, integrated circuits (IC), electrical appliances, mobile communications, hardware products, tool accessories, precision instruments, glasses clocks, jewelry, auto parts, plastic buttons, building materials, PVC pipes, medical equipment and other industries. Applicable materials include: common metals and alloys (all metals such as iron, copper, aluminum, magnesium, zinc, etc.), rare metals and alloys (gold, silver, titanium), metal oxides (all kinds of metal oxides are acceptable), special surfaces Treatment (phosphating, aluminum anodization, electroplating surface), ABS material (electric appliance shell, daily necessities), ink (light-transmitting keys, printed products), epoxy resin (electronic component packaging, insulating layer.

Maintenance knowledge:

During the use of the system, attention should be paid to regular maintenance of the equipment to keep it in the best working condition. The maintenance work can be selected according to the user’s own situation.

Printing needles and sockets:
During the operation of the equipment, the printing needle repeatedly impacts up and down. Due to the friction between the needle sleeve and the printing needle, the inner wall of the needle sleeve and the printing needle itself will be worn after a long time, thus increasing the gap between the needle and the needle sleeve. Large, directly affect the printing effect. Take out the printing needles from the needle holder during maintenance, clean them with gasoline, dry them, add a proper amount of lubricating oil, and reinstall them. This work is carried out according to the frequency of the user’s use of the device, and it is recommended two to three times a week.

Machine head maintenance:
The printer head is mainly composed of linear guide rails and motors. Since the guide rail directly faces the workpiece to be processed, debris generated during the marking process of the workpiece and impurities such as dust in the usual on-site environment are easy to adhere to the guide rail, which will easily cause wear of the guide rail after a long time. The way to avoid it is to clean the guide rails with gasoline regularly, and add an appropriate amount of lubricating oil after drying. It is recommended to do this once every two weeks. At the same time, pay attention to avoid adding oil to the timing belt during the process of cleaning and refueling.

Maintenance of the controller:
Due to its own characteristics, the equipment is exposed to the air for a long time, and it is easy to accumulate dust on the circuit board after a long time. If it is not cleaned for a long time, it will easily cause a short circuit. The way to clear it is to turn off the power of the controller, open the outer cover of the box, and blow off the dust inside with clean compressed air. You should also pay more attention to the dustproof work outside the chassis.

Maintenance of marking machine computer:
After the computer has been running for a long time, a large number of junk files will be generated inside the system. If it is not cleaned up, it will directly affect the normal operation of the software. The work includes some of the following:
(1). Regularly delete some junk files and unnecessary software files;
(2). Organize the hard disk on a regular basis to ensure that the data on the hard disk is organized and orderly, and speed up the operation of the software;
(3). Do not add files and software with unknown history to the system, so as not to be affected by viruses, so as to ensure that the system works in a non-toxic environment. This job has certain requirements on the computer knowledge of the operator, and those who are proficient in using computers can operate by themselves, otherwise, please consult with the company’s personnel before operating.

Principle and performance:

The focusing mirror in the fiber laser marking machine is one of the most important accessories. Its purpose is to focus the laser on the entire workpiece marking plane, thereby improving the ability of the edge beam to enter the detector.

Its performance indicators mainly include the following:
1. Scan range. The larger the area that the lens can scan, the more popular it is of course. However, if the scanning area is increased blindly, many problems will be caused. For example, the light spot becomes thicker, the distortion increases, and so on.
2. Focal length (it has a certain relationship with the working distance, but it is not equal to the working distance). a. The scanning range is directly proportional to the focal length of the field lens – the increase of the scanning range will inevitably lead to the increase of the working distance. The lengthening of the working distance will inevitably lead to the loss of laser energy. b. The spot diameter after focusing is proportional to the focal length. This means that when the scanning area reaches a certain level, the obtained spot diameter is very large, that is to say, the focus is not fine enough, and the power density of the laser drops very quickly (the power density is inversely proportional to the square of the spot diameter), which is not Good for processing. c. Since the F-Theta field mirror works using the relationship of y’=f*θ, the actual value of θ and tgθ is still different. And as the focal length f increases, the degree of distortion will increase.
3. Working wavelength. Most of the two types used in the market are 1064nm and 10600nm. However, with the development of lasers in the future, field lenses of 532nm, 355nm and 266nm will also have corresponding applications.