The side yaw of the sheet should be controlled within 0.3mm.
The stress (tension) in the sheet should be uniform and not easily deformed to extend the life of the sheet.
2, the requirements of the cutter head
The width of the cutter head should be grouped according to its dimensional error, and the cutter head width error on the same saw blade should be controlled within 0.05 mm.
The cutter head should be welded symmetrically to the sheet body, and the error of the side of each cutter head relative to the side of the sheet after welding is not more than 0.08 mm.
The sharpness of the cutter head directly affects the sawing efficiency and service life. When using, the appropriate amount of cutting and sawing speed should be selected according to the different materials of the block. The sawing current should be controlled within 80%~90% of the rated value, and the sawing sound should be smooth and supple. Sometimes a sharp cutter head can be used for a period of time, and the sawing is difficult, the current is increased, and the sound becomes thicker. This is because the corundum wears off or the mixing of the cutter head is uneven, so that the silicon carbide content at this level is insufficient. Effective sawing. At this time, the sawing performance can be restored after the blade is exposed.
Fifth, the use requirements
1. In order to improve the yield and reduce the unnecessary wear of the saw blade, please pay attention to the position of the block and the * can be fixed.
2. When sawing, the spark generated by the strong impact of the cutter head and the stone causes heat to be generated, and a sufficient amount of cooling water is required for cooling. If the amount of water is insufficient, the cutter head will be burnt, so it is necessary to ensure an adequate supply of water without interruption.
3. Add the lubricating fluid on time according to the amount. Sufficient lubrication reduces friction, reduces noise, increases productivity, and extends the life of the blade.
4. Saw the stone of different materials. According to the change of the main motor current, please adjust the sawing depth and sawing speed in time.
5. The sawing process pays attention to the change of the sawing sound and the change of the current. If an abnormality occurs, it should be eliminated in time.
6. Monitor the quality of the sawn board and check the influencing factors according to the degree and quantity of the board.
7. When removing the saw blade for storage, in order to reduce the deformation, vertical hanging should be hung.
Sixth, the development of a new type of saws
In recent years, we have based on domestic raw materials. Using the conditions and production capacity, and drawing on foreign advanced technology, we have developed a complete set of mechanical equipment for export-oriented enterprises, such as stone processing equipment and arc processing equipment. In these equipment, more advanced structures and materials are commonly used. And technology. For example, the variable speed technology uses variable frequency technology. The parts that are more easily worn are treated with high-quality steel for heat treatment, and coated with hard stainless materials to improve the precision, life and rust resistance of the main moving parts. The control system adopts computer-programmable digital processing technology. The main components of the electrical system adopt imported or high-quality domestic components, thus improving the performance and reliability. For example, our “multi-blade two-way stone cutting machine†(ie, combined sawing machine) can hold 30 pieces of saw blades with a diameter of 1.2m for processing thin plates or 20 sets of saw blades combined with 1.6m and 1.2m. Processing medium-sized plates 20mm thick and 600mm wide. The machine adopts four tubular hard chrome-plated columns, the lower part is fixed on the foundation, the upper part is connected with the top beam, and the middle part is connected with the double beam through the sliding sleeve to form a relatively stable frame structure. The whole machine has stable stability and stable operation. The roller rolling guide has low frictional resistance and is light and labor-saving. In order to properly process different sizes of plates to replace different diameter saw blades, while maintaining a certain peripheral speed requirement of the saw blades, a special gearbox is provided for easy shifting. The horizontal saw blade can be hung and placed on the vertical saw blade holder, ensuring that the two saw blades have the same stroke and uniform force. When the horizontal cutting board is provided, an automatic push plate unloading mechanism is also provided, which can improve the unloading efficiency and reduce the labor intensity. The movement, the infeed, the depth of cut and the shifting of the machine are automatically controlled by computer with frequency conversion technology and digital display. Both the feed amount and the singulation accuracy should be controlled within 0.1 mm. The main motor adopts 75kW four-stage motor, which makes the organic combination of gearbox and frequency conversion technology can save about 20% of electricity compared with similar models. Because the machine has the characteristics of simple structure, light weight, balance of movement, use of *, high efficiency, multi-function, remarkable energy-saving effect, etc., it is exported to Henan, Sichuan, Gansu and other provinces and cities, and will be exported to Brazil and Saudi Arabia. The price of this machine is set at between 200,000 yuan and 300,000 yuan according to different supporting requirements. However, this price is still unbearable for the majority of rural self-employed. In contrast, the production of export sheet manufacturers is very small, thus limiting the equipment sales market. How to face the vast and vast stone market, develop new models of high-quality and low-cost combination saws suitable for the needs of users, is undoubtedly a new challenge and opportunity for equipment manufacturers. After comparison and careful design, we have introduced a feature that not only maintains our existing group saws, such as double beams, wide supports, non-cantilever multi-supporting cutter shafts, high lifting strokes, and no-traveling. Dynamic) and special gearboxes and energy-saving, can be equipped with 12 to 14 pieces of combined saw blade, its performance is similar to the existing similar models of the new cutting machine. This model has been adopted by many companies and has been exported. The price is only 10~120,000 yuan/set.
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