1. Is the saw truck aluminum alloy or steel plate?

Now there are mainly two kinds of electronic saw, aluminum alloy and steel plate. Most foreign models are made of aluminum alloy, the vast majority of domestic models are made of steel plate, only very few use aluminum alloy, such as Shundelun teaching new electronic cutting saw on special aluminum alloy trolley (quality is very good). Aluminum alloy has the advantages of light raw materials, hard, use, etc., in the working process of response speed; Defects require very high processing skills to ensure that they do not deform and do not oxidize, so it is necessary to undergo special treatment. The processing of steel plate is relatively simple, which is bulky and aggravates the weight of the locomotive.

2. Fastening method of electronic saw blade: pneumatic lock cutter and screw fastening

Generally speaking, some advanced electronic saws, such as SCM in Italy, Homag in Germany, Changfeng in Taiwan, etc., all use pneumatic locking tool. The advantages of pneumatic locking tool are: changing the common problem of traditional screw fastening, which consumes time and power, and improving the defect that fastening with screw is easy to deform the spindle and then reduce the cutting accuracy.And can always adhere to the saw blade in a straight line, so that the cutting surface does not break the edge. Reduce the time when it is necessary to adjust the small saw blade after each replacement of the saw blade, and the bearing inside the small saw blade will not be adjusted because of good protection! As a result of the sucker type, the advantages of the big saw is more general, on the shaft processing requirements are not high, no pressure requirements.

3. The track on which the saw trolley works back and forth: square rail or circular rail

There are generally two ways to slide the track back and forth on the saw truck. First, let's take a look at a large part of foreign machines are made of circular rails, and in China, circular rails are mainly used. The advantages of square rail are high precision and wear resistance. The defect is that it is difficult to maintain cleanliness in the dusty environment of furniture factory, which is easy to form the phenomenon of card machine.Once the machine is secured, the whole nose has to be removed. It's a lot of work! The advantage of circular rail is: simple, suitable for dusty environment, convenient protection. The disadvantage is that the accuracy is a little bit lower. In the furniture industry is not as high as the mechanical manufacturing requirements of precision, usually do well with a circular rail can also reach the accuracy of about ten silk, and the furniture industry sometimes thirty silk error can also be used. Therefore, it is recommended not to seek high accuracy and bury defects for the future machinery!

4. Driving method of saw truck: servo or frequency conversion

Generally speaking, there are two methods, one is to use rack and pinion + servo + servo motor; The second is to use chain or steel wire + frequency converter + ordinary motor. Most foreign machines use the first type, while only a few domestic machines, such as Sundrungyo Jishin and Haude, are available. The second method is basically modified from the original reciprocating saw.Advantages and disadvantages of the two methods: the advantages of one method is the response speed is fast, not easy to slip, good stability, accuracy is guaranteed. The defect is that the cost is high, much higher than the cost of the second kind; Skills require a good collaboration between precision and mechanical rigidity to ensure stability. Another benefit is simple, low cost, skill requirements are not high. The defect is simple slipping, accelerating the wear of the parts and then reducing the accuracy, adding the defect rate, slow response speed, etc.