In the production process of stone, there are many factors affecting the quality of processing, among which the condition of mechanical equipment, the performance of saw blade, the material of block material, the processing technology and the level of management are all closely related. The following is a description of the problems related to circular saw machinery. First, the sawing structure At present, the sawing machine type used in the stone industry can be divided into three types: single-column cantilever sawing machine, double-column gantry sawing machine and four-column frame sawing machine. 1. Single column cantilever sawing machine This sawing machine is widely used by stone plate factories because of its simple structure and low price. This is the biggest advantage of the single sawing machine. However, such a saw has the following problems due to the limitation of the structure type. (1) Limited lift stroke The slide rails are lifted and lowered in the slide seat, and the slide rails are generally limited to a height limit and the lift stroke is generally within 800 mm. The slicing trolley on the trolley is also small, so only the low-profile, narrow-width blocks can be used. (2) Cantilever restriction The sawing head is fixed on the sliding rail, and the sliding rail is used for lifting movement in the sliding seat, and the horizontally extending cantilever of the sliding seat is fixed on the cement pillar. When the sawing head is sawed, the more the falling, the longer the sliding rail cantilever is. This forms a three-force cantilever structure together with the saw blade hanging from the end of the cutter shaft. As the force of the cantilever changes, the number of saw blades increases, the weight of the overhang increases, the length of the cantilever increases, and the amount of deformation of the cantilever force, especially the deformation of the cutter shaft, also increases. This leads to an increase in the yaw amplitude caused by the deformation of the blade of the blade at the outer end of the blade, which is also the reason why the blade of the single column is more easily damaged when used as a multi-piece combination saw. (3) Bearing limit When sawing, the resistance of the block to the saw blade can be decomposed into the upward support force and horizontal thrust of the cutter head. Under this force, the sawing head and the slide rail form an upward jacking torque and a horizontal torque. These two moments are finally transmitted to the slide and are carried by the slide. The slide of the single-column saw is generally made higher, and the force of the push-up moment is larger, so the ability to withstand the top moment is also large. The width of the slide rail is relatively narrow, so the ability to withstand horizontal torque is poor. With the reciprocating motion of the blocks on the trolley, the direction of this torque is constantly changing. Because of the need for the lifting movement, there is a gap between the sliding rail and the sliding seat. Under the action of the torsional moment, the cutter shaft is forced to swing back and forth. Also due to the existence of the gap, the upper top moment lifts the cutter shaft when sawing, and the cutter shaft hangs down under the heavy load of the saw blade when the saw blade leaves the block. This is one of the reasons why the cutter shaft is oscillated under the sawing force during the sawing process. The small swing of the gap is small, and the large swing is also large. It can be seen that if the slide rail is longer and wider, that is, the larger the support surface of the slide rail, the more stable the saw machine. Similarly, the smaller the gap between the slide guide rail and the slide rail, the higher the accuracy of the up and down movement, and the smaller the vibration caused by this, and the vibration of the saw machine will increase. Therefore, adjusting the gap between the rail insert and the rail during the use process is an important factor to ensure the stable operation of the saw. (4) Poor stability of the trolley The length of the two tracks of the trolley is generally about 6m, and high level and parallelism are required in the whole length to ensure uniform and stable movement of the trolley. The adjustment of the flatness requires a long flat ruler and a level. This condition is not available to the average manufacturer. Even if the adjustment is correct during the new installation, the flatness is affected by the base deformation or uneven wear during use. At this time, adjustments should be made, otherwise there will be three rounds of one wheel hanging in the air, affecting the stability of its use. When sawing a knife and need to split the saw to cut the second knife, the sliced ​​cars of this type of saw are placed on the trolley. Such overlapping of the two vehicles also increases the instability of the trolley. During the sawing process, under the heavy pressure of the block material, the trolley works continuously under the conditions of the spattering of the stone powder, and the wheels and bearings are easily damaged. If it is not adjusted or replaced in time, it will affect the normality of the trolley. run. 2, double column gantry sawing machine Most of the sawing heads of this type of sawing machine are fixed under the sliding box, and the sliding box is reciprocating sawing movement on the beam. The trolley is fixed during the sawing process, thus eliminating the instability caused by the mechanical problems of the trolley. Next page Wireless level sensor is a high-precision, low-power wireless liquid level detection instrument, which consists of input liquid level sensor, signal processing circuit, communication module and power module. It uses a high-capacity, high-energy lithium battery, radio frequency radio transmission data. Installation is simple, easy to use, no need site wiring, leaves out the conventional instrument wiring bypass trouble, save manpower and construction cost, especially suitable for unwired and unpowered application site. 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