With the continuous development of the industry, more and more people are now using stone engraving machines to make stone carvings. However, consumables have become the most troublesome thing for many stone engraving machine users.
The price of stone carving tools varies from a few yuan to a few hundred yuan. Each broken knife symbolizes that the cost of use has increased. So, how can we better guarantee the longer life of the engraving tool?
Based on our understanding of the industry, we have the following experience:
1, tool quality:
This is the premise that the quality of the tool itself is not good.
2, choose a good tool,
It’s not that all the expensive ones are good, the key is to fit, to be targeted, for example
1) Mohs hardness, <5 such as: white marble carving, bluestone carving (distributed widely Shandong, Henan, Hunan, etc.) This stone is relatively soft, widely distributed, and cheap. It is the first choice for many tombstone carving and embossing engraving users. Bluestone, lettering: We generally use tungsten steel sharp knife. This kind of tool is cheap and easy to use, especially for lettering and embossing.
2) Mohs hardness, between 5 and 6 such as China's Heifeng Town, which is commonly used in China, etc. These stones are relatively hard. When choosing a tool, use diamond or diamond tools as much as possible. The tool making process is different according to the use of the corundum. At present, there are two common processes in China: 1. Brazing: This tool only applies a layer of sand on the arbor using a brazing process. Relatively sharp, the engraving precision is high, but because the process is different, the amount of cooling water should be sufficient. If the temperature is too high, it will be scrapped due to high temperature. 2. The whole body knife: This kind of tool generally places all the corundum in front of the entire tool bar. The tool has a long service life when it comes to the opposite direction, but it will wear out due to the use time, resulting in some differences in the depth of the front and rear engraving. It is suitable for stone materials with low engraving precision and hard material. Such as General Red China Red, etc.
3) Sandstone carving: Sandstone is selected as much as possible due to material limitations.
3. How to use:
Generally, the abnormal damage of the tool has the following points: 1. Improper use, the speed of the lower knife is too fast (the speed of the stone cutting knife should be kept between 200-350 according to the material). The speed is too fast, the cooling water is insufficiently controlled, and the first knife is fixed. To be slow
4, engraving pattern:
General stone engraving machine is divided into: lettering, line carving, and relief.
1), lettering: the general tombstone carving tool damage method is abrupt tip, pay attention to adjust the engraving depth to observe the material flatness, 3D word control speed and depth.
2), line carving: line carving is the factor that affects the service life of the tool. Generally, the uneven speed of the layout is too fast, the speed of the line is different and the speed of the relief. For example, the acceleration and inertia of the same speed line are larger, so try to Slow down, the material is softer and can be accelerated
3), embossing: During the embossing process, many friends feel that widening the tool compensation can save a lot of time, but often ignores the ability of the tool to withstand, and then emboss the embossed type to adjust the engraving precision as much as possible within the acceptable time range. In the case of the case, the engraving speed can be adjusted appropriately, and the accuracy and speed can be adjusted quickly and well.
Relief pattern selection: At present, most of the predecessors who do embossing in China are made of wood, mold, etc. They often require the pattern to be quite perfect, but ignore one point: the depth of stone engraving is equivalent to the darker material. If the level is too clear, it will often be short-cut at the level.
5, the quality of the machine itself:
The stability of the machine is not good, causing tremors during the engraving process, and the broken knife is normal. In order to select the quality of the guide rails, some manufacturers choose compasses or smaller square rails in order to save the machine cost. The gap between the guide rails will also cause the tool to tremble. Spindle motor dynamic balance adjustment is not good (this kind of rarely occurs) the quality of the tool holder. At present, some errors in the domestic tool holder will cause the balance imbalance.
6. When the knife is changed after the knife is cut, the knife is removed first, and even some of the broken pieces of the knife must be removed. Otherwise, it is easy to cause the second broken knife. Then replace it with a suitable knife.
7, the spindle speed should be no less than 18000 rpm
8, to ensure a stable working voltage 380V voltage up and down not to exceed ± 10%
