(Summary description)
As the name implies, multi-blade saw blades are saw blades that are installed and used together, generally alloy saw blades are the main ones. Multi-blade saw blades are generally used for wood processing, such as: fir, poplar, pine, eucalyptus, imported wood and miscellaneous wood, etc., widely used in round wood processing, square wood processing, edge cleaning machines, furniture making and other industries , Simple multi-blade saws can generally be installed with 4-6 blades, and the upper and lower axis multi-blade saws can be installed with 8 saw blades, or even more than 40 blades, which greatly improves the work efficiency of workers. Multi-blade saw blades are generally equipped with a certain number of cooling holes and thermal expansion grooves, or multiple scrapers are designed to achieve better heat dissipation effect and make chip removal more smooth.
Outer diameter of multi-blade saw blade
It mainly depends on the installation limit of the machine and the thickness of the cutting material. The small diameter is 110MM, and the large diameter can reach 450 or larger. According to the requirements of the machine, some saw blades need to be installed up and down at the same time, or installed at the same time, so as not to increase The diameter of the saw blade can achieve a greater cutting thickness while reducing the cost of the saw blade.
Number of teeth of multi-blade saw blade
In order to reduce the resistance of the machine, increase the durability of the saw blade, and reduce the noise, multi-blade saw blades are generally designed with fewer teeth. The outer diameter of 110-180 is about 12-30 teeth. About 30-40 teeth, there are more powerful machines, or manufacturers that emphasize the cutting effect, a small amount of about 50 teeth is designed.
Multi-blade saw blade thickness
The thickness of the saw blade theoretically we hope that the thinner the saw blade is, the better, the sawing is actually a consumption. The material of the alloy saw blade base and the process of manufacturing the saw blade determine the thickness of the saw blade. If the thickness is too thin, the saw blade is easy to shake when working, which affects the cutting effect. The thickness of the outer diameter of 110-150MM can be 1.2-1.4MM, and the thickness of the saw blade with the outer diameter of 205-230MM is about 1.6-1.8MM, which is only suitable for cutting soft wood with low density. When choosing the thickness of the saw blade, the stability of the saw blade and the material to be cut should be considered. At present, in order to reduce consumption, some companies have begun to produce single-sided convex plate or double-sided convex plate multi-blade saw blades, that is, the two sides of the middle hole are thicker, and the inner side of the alloy is thinner, and then the teeth are welded to ensure the cutting thickness At the same time, the effect of saving materials is achieved.
Aperture of multi-blade saw blade
Of course, the aperture of the multi-blade saw blade depends on the requirements of the machine first, because multiple blades are installed together. In order to ensure stability, the aperture is generally designed to be larger than that of the conventional saw blade. Most of the apertures are increased while additional special methods are installed. The blue plate and the keyway are designed to facilitate the addition of coolant for cooling and increase stability. Generally, the hole diameter of the 110-200MM outer diameter saw blade is between 35-40, the 230-300MM outer diameter saw blade is between 40-70, and the saw blade above 300MM is generally less than 50MM.
Tooth shape of multi-blade saw blade
The tooth profile of multi-blade saw blades is generally based on alternating left and right teeth, and a few small-diameter saw blades are also designed with flat teeth.
Multi-blade saw blade coating
After the welding and grinding of multi-blade saw blades are completed, coating treatment is generally carried out, which is said to extend the service life. In fact, it is mainly for the appearance of the saw blade, especially the multi-blade saw blade with a scraper. The current welding level, the scraper There are very obvious welding traces, so coating treatment is carried out to maintain the appearance.
Multi-blade saw blade with scraper
Multi-blade saw blades are welded with cemented carbide on the saw blade base, collectively called scrapers. Scrapers are generally divided into inner scrapers, outer scrapers and tooth scrapers. The inner scrapers are generally used for hardwood cutting, the outer scrapers are generally used for wet wood cutting, and the tooth scrapers are mostly used for trimming or edge banding saw blades, but they cannot be generalized. Take the Kobayashi multi-blade saw blade as an example. Generally, the number of scrapers under 10 inches is 2-4. In order to maximize the effect of the scrapers, most of them are designed as external scrapers. The number of scrapers for 12

• Categories:Industry information
• Time of issue:2020-09-06 14:45