A saw blade temperature monitoring system

Abstract

The present invention provides a saw blade temperature monitoring system, which relates to the technical field of monitoring. The system includes: a first temperature sensor and a second temperature sensor group, and the second temperature sensor group, the cooling component of the circular saw, and the first temperature sensor are arranged in sequence along the rotation direction of the saw blade; a processor, configured to: if the first temperature data meets the first temperature condition and the rotation speed of the saw blade remains unchanged, determine an adjusted time interval according to the current time interval between adjacent moments when the first temperature data is obtained and the current rotation speed of the saw blade; if the first temperature data does not meet the first temperature condition, and / or the rotation speed of the saw blade changes, turn on the second temperature sensor group to obtain second temperature data; determine an adjusted time interval and an adjustment method of the cooling component according to the first temperature data and the second temperature data. According to the present invention, the cooling component can be adjusted in time, so as to effectively protect the saw blade, improve the service life of the saw blade, and reduce the waste of coolant.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature monitoring, and in particular, to a saw blade temperature monitoring system. Background Art

[0002] In the related art, the temperature of the saw blade can be monitored by a sensor, and it can be determined whether the saw blade is abnormal, but it is impossible to determine whether the cooling of the saw blade is effective, nor can the cooling component be adjusted appropriately to improve the cooling effect of the saw blade. Summary of the Invention

[0003] The present invention provides a saw blade temperature monitoring system, which can solve the technical problems that in the related art, it is impossible to determine whether the cooling of the saw blade is effective, nor can the cooling component be adjusted appropriately.

[0004] According to a first aspect of the present invention, there is provided a saw blade temperature monitoring system, including: a first temperature sensor and a second temperature sensor group. Among them, the second temperature sensor group, the cooling component of the circular saw, and the first temperature sensor are arranged in sequence along the rotation direction of the saw blade. The first temperature sensor is used to detect the first temperature data of the saw blade after being cooled by the cooling component. The distance between the detection position of the first temperature sensor and the centroid of the saw blade is , where R is the radius of the saw blade, is the first proportionality coefficient. The second temperature sensor group includes n second temperature sensors, which are used to detect the second temperature data of the saw blade before being cooled. The distance between the detection position of the i-th second temperature sensor and the centroid of the saw blade is , , , is the i-th second proportionality coefficient, is the (i + 1)-th second proportionality coefficient, is the first second proportionality coefficient;

[0005] A processor, configured to: if the first temperature data meets the first temperature condition and the rotation speed of the saw blade remains unchanged, determine the adjusted time interval according to the current time interval between adjacent moments when the first temperature data is obtained and the current rotation speed of the saw blade;

[0006] If the first temperature data does not meet the first temperature condition, and / or the rotation speed of the saw blade changes, then turn on the second temperature sensor group and obtain the second temperature data;

[0007] Determine the adjusted time interval and the adjustment method of the cooling component according to the first temperature data and the second temperature data.

[0008] According to the present invention, the first temperature condition includes:

[0009] The first temperature data obtained at a plurality of consecutive moments all belong to the first preset temperature range, and the absolute values of the change rates of the first temperature data between the plurality of consecutive moments are all less than the first preset change rate.

[0010] According to the present invention, determining an adjusted time interval according to the current time interval between adjacent moments when obtaining the first temperature data and the current rotation speed of the saw blade includes:

[0011] According to the formula

[0012] Determine the adjusted time interval , where is the current time interval, is the current rotation speed.

[0013] According to the present invention, determining the adjusted time interval and the adjustment method of the cooling component according to the first temperature data and the second temperature data includes:

[0014] If the rotation speed of the saw blade does not change, then determine the adjusted time interval and the adjustment method of the cooling component according to the first temperature data, the second temperature data and the current rotation speed;

[0015] If the rotation speed of the saw blade changes, then determine the adjusted time interval and the adjustment method of the cooling component according to the first temperature data, the second temperature data and the adjusted rotation speed.

[0016] According to the present invention, if the rotation speed of the saw blade does not change, then determining the adjusted time interval and the adjustment method of the cooling component according to the first temperature data, the second temperature data and the current rotation speed includes:

[0017] Determine the adjusted time interval according to the current time interval and the current rotation speed;

[0018] Determine the flow rate adjustment coefficient of the coolant of the cooling component according to the first temperature data and the second temperature data obtained at a plurality of moments after the second temperature sensor group is turned on.

[0019] According to the present invention, determining the flow rate adjustment coefficient of the coolant of the cooling component according to the first temperature data and the second temperature data obtained at a plurality of moments after the second temperature sensor group is turned on includes:

[0020] If the maximum value of the first temperature data obtained at a plurality of consecutive moments exceeds the upper limit of the first preset temperature range, and / or the maximum value of the change rate of the first temperature data is greater than or equal to the first preset change rate, then according to the formula

[0021] Determine the flow rate adjustment coefficient of the coolant of the cooling component , where is the maximum value of the first temperature data at multiple moments after the second temperature sensor group is turned on, is the minimum value of the first temperature data at multiple moments after the second temperature sensor group is turned on, is the moment when the maximum value of the first temperature data is detected, is the moment when the minimum value of the first temperature data is detected, is the upper limit of the first preset temperature range, is the lower limit of the first preset temperature range, is the working duration of a single cutting, , is the temperature of the coolant, The nth second proportionality coefficient, is the second temperature data of the ith second temperature sensor obtained at the jth moment after the second temperature sensor group is turned on, The second temperature data of the (i + 1)th second temperature sensor obtained at the jth moment after the second temperature sensor group is turned on, m is the number of moments after the second temperature sensor group is turned on, and max is the maximum value function;

[0022] Otherwise, according to the formula

[0023] Determine the flow rate adjustment coefficient of the coolant of the cooling component , where min is the minimum value function.

[0024] According to the present invention, if the rotation speed of the saw blade changes, then according to the first temperature data, the second temperature data, and the adjusted rotation speed, determine the adjusted time interval and the adjustment method of the cooling component, including: determining the basic time interval according to the adjusted rotation speed;

[0025] Obtain the first temperature data at multiple moments according to the basic time interval, and determine whether the first temperature data meets the first temperature condition; if it meets the first temperature condition, then determine the adjusted time interval according to the basic time interval and the adjusted rotation speed;

[0026] If it does not meet the first temperature condition, then determine the adjusted time interval according to the basic time interval and the adjusted rotation speed, and obtain the first temperature data and the second temperature data at multiple moments according to the adjusted time interval; determine the adjustment method of the cooling component according to the first temperature data and the second temperature data obtained after determining the adjusted time interval.

[0027] According to the present invention, determining the adjustment method of the cooling component according to the first temperature data and the second temperature data obtained after determining the adjusted time interval includes:

[0028] If the maximum value among the first temperature data obtained at multiple moments after the adjusted time interval exceeds the upper limit of the first preset temperature range, and / or the maximum value of the change rate of the first temperature data is greater than or equal to the first preset change rate, then determine the flow rate adjustment coefficient of the coolant of the cooling component according to the maximum and minimum values of the first temperature data, the second temperature data, and the first preset temperature range obtained at multiple moments after the adjusted time interval;

[0029] Otherwise, determine the flow rate adjustment coefficient of the coolant of the cooling component according to the maximum and minimum values of the first temperature data obtained at multiple moments after the adjusted time interval, and the first preset temperature range.

[0030] By adopting the above technical solutions, the present invention can achieve the following technical effects:

[0031] According to the present invention, the temperature of the saw blade can be monitored by the first temperature sensor and the second temperature sensor group to determine whether the cooling component can effectively cool the saw blade, and the settings of the cooling component can be adjusted in a timely manner when the cooling component is difficult to effectively cool the saw blade or the rotation speed of the saw blade changes, so as to effectively protect the saw blade and improve the service life and cutting efficiency of the saw blade. Further, when the first temperature data is normal and stable, and the working state of the saw blade is stable, the interval duration can be extended by increasing the number of rotations of the saw blade within the temperature measurement time interval, reducing the temperature measurement frequency, and thus reducing the data storage pressure. And when the rotation speed of the saw blade does not change and the first temperature condition is not satisfied, the specific temperature situation of the saw blade can be analyzed case by case, and the change rate of the first temperature data can be made to reach the allowable change rate through the flow rate adjustment coefficient, the first temperature data can be made to fall within the first preset temperature range, and the temperature change per unit distance can be made to reach a reasonable temperature change per unit distance, so as to reduce the damage to the saw blade, extend the service life of the saw blade, and reduce the waste of coolant at the same time. Description of the Drawings

[0032] Figure 1 Exemplarily shows a schematic diagram of a saw blade temperature monitoring system according to an embodiment of the present invention;

[0033] Figure 2 Exemplarily shows a flowchart of steps executed by a controller of a saw blade temperature monitoring system according to an embodiment of the present invention;

[0034] Figure 3 Exemplarily shows a schematic diagram of detection positions of a first temperature sensor and a second temperature sensor group according to an embodiment of the present invention. Detailed Embodiments

[0035] The technical solution of the present invention will be described in detail below with specific embodiments. These several specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0036] Figure 1 Exemplarily shown is a schematic diagram of a saw blade temperature monitoring system according to an embodiment of the present invention. The system includes: a first temperature sensor and a second temperature sensor group, and a controller; wherein, the second temperature sensor group, the cooling assembly of the circular saw, and the first temperature sensor are arranged in sequence along the rotation direction of the saw blade. The first temperature sensor is used to detect the first temperature data of the saw blade after being cooled by the cooling assembly. The distance between the detection position of the first temperature sensor and the centroid of the saw blade is , where R is the radius of the saw blade, is the first proportionality coefficient. The second temperature sensor group includes n second temperature sensors, which are used to detect the second temperature data of the saw blade before being cooled. The distance between the detection position of the i-th second temperature sensor and the centroid of the saw blade is , , , is the i-th second proportionality coefficient, is the (i + 1)-th second proportionality coefficient, is the first second proportionality coefficient.

[0037] Figure 2 Exemplarily shown is a flowchart of the steps executed by the controller of the saw blade temperature monitoring system according to an embodiment of the present invention. The processor is used to execute the following steps:

[0038] Step S1, if the first temperature data meets the first temperature condition and the rotation speed of the saw blade remains unchanged, then determine the adjusted time interval according to the current time interval between adjacent moments when the first temperature data is obtained and the current rotation speed of the saw blade;

[0039] Step S2, if the first temperature data does not meet the first temperature condition, and / or the rotation speed of the saw blade changes, then turn on the second temperature sensor group and obtain the second temperature data;

[0040] Step S3, determine the adjusted time interval and the adjustment method of the cooling assembly according to the first temperature data and the second temperature data.

[0041] According to the saw blade temperature monitoring system of the embodiment of the present invention, the temperature of the saw blade can be monitored through the first temperature sensor and the second temperature sensor group to determine whether the cooling assembly can effectively cool the saw blade, and the settings of the cooling assembly can be adjusted in a timely manner when the cooling assembly is difficult to effectively cool the saw blade or the rotation speed of the saw blade changes, so as to effectively protect the saw blade and improve the service life and cutting efficiency of the saw blade.

[0042] According to an embodiment of the present invention, each second temperature sensor in the first temperature sensor and the second temperature sensor group may be an infrared temperature sensor, and the second temperature sensor group, the cooling assembly of the circular saw, and the first temperature sensor are arranged in sequence along the rotation direction of the saw blade.

[0043] Figure 3 Exemplarily shown is a schematic diagram of the detection positions of the first temperature sensor and the second temperature sensor group according to an embodiment of the present invention. In Figure 3 it, the rotation direction of the saw blade is the clockwise direction, that is, rotating from left to right. Then, the second temperature sensor group, the cooling assembly, and the first temperature sensor are arranged in sequence from left to right. The detection position of the first temperature sensor is located after the cooling position of the cooling assembly (for example, a cooling assembly capable of spraying coolant), such as the position of the solid dot surrounded by the dashed box on the right side of the saw blade. The detection positions of multiple second temperature sensors are located before the cooling position of the cooling assembly, such as the positions of multiple solid dots surrounded by the dashed box on the left side of the saw blade. The distance between the detection position of the first temperature sensor and the centroid of the saw blade is and the detection position of the first temperature sensor is close to the edge of the saw blade. For example, the distance between the detection position of the i-th second temperature sensor and the centroid of the saw blade is For example, that is, between the position close to the edge of the saw blade and the position close to the centroid of the saw blade, the detection positions of multiple second temperature sensors are evenly distributed.

[0044] According to an embodiment of the present invention, the processor may obtain the first temperature data collected by the first temperature sensor, and if the first temperature data remains stable and the working state of the saw blade remains stable, the detection interval may be appropriately lengthened and the detection frequency may be reduced to reduce the data volume and the data storage pressure.

[0045] According to an embodiment of the present invention, in step S1, if the first temperature data meets the first temperature condition, it means that the first temperature data remains stable and no temperature anomaly occurs. If the rotation speed of the saw blade remains unchanged, the working state of the saw blade remains stable. In this case, the first temperature data will also be relatively stable, and the fluctuations of the first temperature data obtained by multiple acquisitions are small. The detection frequency may be appropriately reduced to reduce the data storage pressure.

[0046] ​​​​​According to an embodiment of the present invention, the first temperature condition includes: the first temperature data obtained at a continuous plurality of moments all belong to a first preset temperature range, and the absolute value of the change rate of the first temperature data between the continuous plurality of moments is less than a first preset change rate. In an example, the continuous plurality of moments may be 5 consecutive moments or 10 consecutive moments, etc., and the present invention does not limit the specific value of the number of moments. The first preset temperature range can be set to [50, 120], with the unit of degree Celsius. The absolute value of the temperature change rate between each moment can be determined by the ratio of the temperature difference between adjacent moments to the time difference between adjacent moments. The smaller the absolute value of the temperature change rate, the more stable the temperature. The first preset change rate can be set to 5 °C / s.

[0047] According to an embodiment of the present invention, if the first temperature data obtained at a continuous plurality of moments all belong to the first preset temperature range, and the absolute value of the change rate of the first temperature data between the continuous plurality of moments is less than the first preset change rate, it can be considered that the first temperature data is normal and stable. If the rotation speed of the saw blade does not change, the overall condition of the saw blade is stable, and there is no need to perform high-frequency temperature measurement. The temperature measurement frequency can be appropriately reduced to reduce the data storage pressure.

[0048] According to an embodiment of the present invention, determining the adjusted time interval according to the current time interval between adjacent moments for obtaining the first temperature data and the current rotation speed of the saw blade includes: determining the adjusted time interval according to formula (1) ,

[0049] (1)

[0050] wherein, is the current time interval, is the current rotation speed.

[0051] According to an embodiment of the present invention, the unit of the current rotation speed is revolutions per minute. Therefore, represents the duration required for the saw blade to rotate one circle, that is, how many seconds it takes for the saw blade to rotate one circle. Then it means that on the basis of the current time interval, the duration required for the saw blade to rotate one circle is added. In other words, between adjacent moments of two temperature measurements, the number of circles rotated by the saw blade increases by one circle. For example, based on the current time interval, the first temperature sensor detects the temperature every 10 rotations of the saw blade. Based on the adjusted time interval, the first temperature sensor detects the temperature every 11 rotations of the saw blade. Thus, when the temperature of the saw blade remains stable and the working state remains stable, the number of circles rotated by the saw blade between adjacent two temperature measurement moments can be increased, thereby reducing the number of temperature measurements, reducing the temperature measurement frequency, and reducing the data storage pressure.

[0052] In this way, when the first temperature data is normal and stable and the working state of the saw blade is stable, the interval duration can be extended by increasing the number of revolutions of the saw blade within the temperature measurement time interval, reducing the temperature measurement frequency, and thus reducing the data storage pressure.

[0053] According to an embodiment of the present invention, in step S2, if at least one of the first temperature data does not meet the first temperature condition and the rotation speed of the saw blade changes occurs, it is necessary to obtain the second temperature data through the second temperature sensor group, so as to comprehensively determine the time interval between adjacent temperature measurement moments in combination with the first temperature data and the second temperature data, and determine how to adjust the cooling component. For example, adjust the flow rate of the coolant sprayed by the cooling component.

[0054] According to an embodiment of the present invention, step S2 includes: if the rotation speed of the saw blade does not change, determine the adjusted time interval and the adjustment method of the cooling component according to the first temperature data, the second temperature data and the current rotation speed; if the rotation speed of the saw blade changes, determine the adjusted time interval and the adjustment method of the cooling component according to the first temperature data, the second temperature data and the adjusted rotation speed.

[0055] According to an embodiment of the present invention, if the rotation speed of the saw blade does not change, re-determine the time interval between temperature measurement moments and the flow rate of the coolant sprayed by the cooling component when the first temperature data does not meet the first temperature condition.

[0056] According to an embodiment of the present invention, if the rotation speed of the saw blade does not change, determining the adjusted time interval and the adjustment method of the cooling component according to the first temperature data, the second temperature data and the current rotation speed includes: determining the adjusted time interval according to the current time interval and the current rotation speed; determining the flow rate adjustment coefficient of the coolant of the cooling component according to the first temperature data and the second temperature data obtained at multiple moments after the second temperature sensor group is turned on.

[0057] According to an embodiment of the present invention, determining the adjusted time interval according to the current time interval and the current rotation speed includes: is determined as the adjusted time interval. Contrary to formula (1), if the first temperature data does not meet the first temperature condition, the first temperature data is abnormal (for example, the first temperature data is too high or too low), or the change rate of the first temperature data is abnormal. In this case, it is necessary to increase the temperature measurement frequency and monitor the first temperature data more timely, and the number of revolutions of the saw blade within the time interval can be reduced by one revolution.

[0058] According to an embodiment of the present invention, based on the adjusted time interval, the first temperature data and the second temperature data can be obtained through the first temperature sensor and the second temperature sensor group respectively, and further, the flow rate adjustment coefficient of the coolant of the cooling component can be determined.

[0059] According to an embodiment of the present invention, determining the flow rate adjustment coefficient of the coolant of the cooling component according to the first temperature data and the second temperature data obtained at multiple moments after the second temperature sensor group is turned on includes: if the maximum value of the first temperature data obtained at multiple consecutive moments exceeds the upper limit of the first preset temperature range, and / or the maximum value of the change rate of the first temperature data is greater than or equal to the first preset change rate, then determine the flow rate adjustment coefficient of the coolant of the cooling component according to formula (2) ,

[0060] (2)

[0061] Wherein, is the maximum value of the first temperature data at multiple moments after the second temperature sensor group is turned on, is the minimum value of the first temperature data at multiple moments after the second temperature sensor group is turned on, is the moment when the maximum value of the first temperature data is detected, is the moment when the minimum value of the first temperature data is detected, is the upper limit of the first preset temperature range, is the lower limit of the first preset temperature range, is the working duration of a single cut, , is the temperature of the coolant, The nth second proportional coefficient, is the second temperature data of the ith second temperature sensor obtained at the jth moment after the second temperature sensor group is turned on, is the second temperature data of the (i + 1)th second temperature sensor obtained at the jth moment after the second temperature sensor group is turned on, m is the number of moments after the second temperature sensor group is turned on, max is the maximum value function; otherwise, determine the flow rate adjustment coefficient of the coolant of the cooling component according to formula (3) ,

[0062] (3)

[0063] Wherein, min is the minimum value function.

[0064] According to an embodiment of the present invention, if the maximum value among the first temperature data obtained at consecutive moments exceeds the upper limit of the first preset temperature range, it means that there is first temperature data exceeding the upper limit of the first preset temperature range. In other words, there is a situation where the temperature is too high, which easily leads to damage to the saw blade or shortens the service life of the saw blade. If the first temperature data is still rising, the flow rate of the coolant can be adjusted. For example, the flow rate of the coolant can be increased, so that the first temperature data drops back within the first preset temperature range. Even if the first temperature data is decreasing, the flow rate of the coolant can also be adjusted. For example, the flow rate of the coolant can be increased to increase the rate of decrease of the first temperature data. Therefore, regardless of whether the first temperature data is rising or falling, as long as there is first temperature data exceeding the upper limit of the first preset temperature range, the flow rate of the coolant can be increased.

[0065] According to an embodiment of the present invention, if the maximum value of the change rate of the first temperature data is greater than or equal to the first preset change rate, that is, there is a situation where the rising speed of the first temperature data is too fast, which easily causes the temperature of the saw blade to rise too much in a short time, resulting in damage to the saw blade or shortening the service life of the saw blade. Moreover, when the flow rate of the coolant and the rotation speed of the saw blade remain unchanged, the change rate of the first temperature data is difficult to decrease by itself. Even if the first temperature data of the saw blade is relatively low at this time (for example, lower than the lower limit of the first preset temperature range), the temperature of the saw blade is also likely to exceed the upper limit of the first preset temperature range in a short time. Therefore, it is necessary to increase the flow rate of the coolant. Of course, if the first temperature data of the saw blade is relatively high at this time (for example, exceeding the upper limit of the preset temperature range), it is also necessary to increase the flow rate of the coolant.

[0066] According to an embodiment of the present invention, in formula (2), is the average change rate of the first temperature data within the time period between the maximum value and the minimum value of the collected first temperature data. If the rotation speed of the saw blade remains unchanged and the flow rate of the coolant remains unchanged, the change rate of the saw blade temperature is difficult to change by itself. Therefore, this change rate can also represent the average change rate of the first temperature data. is the maximum change rate of the first temperature data allowed within the working duration of a single cut. For example, if the saw blade is used for cutting stone and the time required to cut each piece of stone is 10 seconds, then this change rate is the maximum change rate of the first temperature data allowed within the time of cutting one piece of stone. is the relative difference between the above two change rates. If is greater than or equal to , that is, the average change rate of the first temperature data is greater than or equal to the allowed maximum change rate, it can be considered that the change rate of the first temperature data is too high, and it is necessary to increase the flow rate of the coolant to improve the cooling efficiency, thereby reducing the change rate of the first temperature data. Therefore, in this case, is a coefficient greater than 1, which can increase the flow rate of the coolant, and the increased amplitude is the relative gap between the average change rate of the first temperature data and the allowable change rate, so that the change rate of the first temperature data is expected to drop to the allowable change rate.

[0067] According to an embodiment of the present invention, in formula (2), is the relative gap between the maximum value of the first temperature data and the upper limit of the first preset temperature range. If the maximum value of the first temperature data is higher than the upper limit of the first preset temperature range, this relative gap is a positive number. Whether the first temperature data is still rising, falling, or remaining unchanged, the flow rate of the coolant can be increased to make the first temperature data drop rapidly and return to the first preset temperature range at a faster speed. In the above cases, is a coefficient greater than 1, which can increase the flow rate of the coolant, and the increased amplitude is the relative gap between the maximum value of the first temperature data and the upper limit of the first preset temperature range, so that the first temperature data is expected to drop within the first preset temperature range.

[0068] According to an embodiment of the present invention, greater than or equal to , and greater than or equal to at least one of them holds. Therefore, and at least one of them is greater than 1.

[0069] According to an embodiment of the present invention, , is the temperature corresponding to the midpoint of the first preset temperature range, and this temperature can be considered as the temperature suitable for the cutting work at the edge position of the saw blade. is the temperature of the coolant. Since the coolant is continuously sprayed on the saw blade and the coolant flows from the top of the saw blade through the centroid and bottom of the saw blade and then leaves the saw blade, the saw blade is cooled. And the centroid area of the saw blade does not directly contact the material to be cut, that is, there is no direct friction. Therefore, if the temperature of the centroid area of the saw blade rises, it is caused by the heat transfer from the edge part of the saw blade to the centroid part. The heating rate and temperature of the centroid part of the saw blade are theoretically lower than those of the edge part, that is, the heating rate and temperature of the centroid part of the saw blade are theoretically at a lower level under the cooling effect of the coolant, and its temperature is theoretically close to the temperature of the coolant.

[0070] Therefore, can represent the temperature difference between the edge position and the position near the centroid of the saw blade when the coolant can effectively cool the saw blade, while is the distance between the edge position and the position near the centroid of the saw blade.

[0071] Therefore, can represent a reasonable temperature change per unit distance. represents the temperature change per unit distance between the detection positions of the i-th second temperature sensor and the (i + 1)-th detection position at the j-th moment. If the coolant fails to effectively cool the saw blade, the heat transfer efficiency from the edge position to the vicinity of the centroid is relatively high, resulting in the temperature near the centroid being closer to the edge position, that is, the temperature change per unit distance is smaller, so that is less than the reasonable temperature change per unit distance described above , is the relative difference between the two. Moreover, the higher the heat transfer efficiency from the edge position to the vicinity of the centroid and the smaller the temperature change per unit distance, the larger this relative difference value is, and is also larger.

[0072] is the maximum value corresponding to each moment of . The maximum value of can represent the maximum relative difference between the temperature change per unit distance and the reasonable temperature change per unit distance. Therefore, the maximum value of can increase the coolant flow rate, and the increase amplitude is the maximum relative difference between the temperature change per unit distance and the reasonable temperature change per unit distance, so that the temperature change per unit distance is expected to reach the reasonable temperature change per unit distance.

[0073] According to an embodiment of the present invention, the maximum value of the above three items can be taken as the coolant flow adjustment coefficient to increase the coolant flow rate, so as to reduce the change rate of the first temperature data to the allowable change rate, make the first temperature data drop within the first preset temperature range, and enable the temperature change per unit distance to reach the reasonable temperature change per unit distance to be fully realized, so as to reduce the damage to the saw blade and extend the service life of the saw blade.

[0074] According to an embodiment of the present invention, if the first temperature data neither satisfies the first temperature condition, nor does the maximum value of the first temperature data obtained at consecutive moments exceed the upper limit of the first preset temperature range, and at least one of the maximum value of the change rate of the first temperature data being greater than or equal to the first preset change rate, then the situation of the first temperature data of the saw blade is at least one of the following two situations: The first situation is that the minimum value of the first temperature data is lower than the lower limit of the first preset temperature range and the maximum value of the change rate of the first temperature data is less than the first preset change rate; the second situation is that the minimum value of the change rate of the first temperature data is less than or equal to the negative first preset change rate and the maximum value of the first temperature data does not exceed the upper limit of the first preset temperature range. If both situations occur simultaneously, then the minimum value of the first temperature data is lower than the lower limit of the first preset temperature range, the maximum value of the first temperature data does not exceed the upper limit of the first preset temperature range, and the minimum value of the change rate of the first temperature data is less than or equal to the negative first preset change rate.

[0075] According to an embodiment of the present invention, if any one of the above two situations occurs, or both occur simultaneously, it means that the coolant flow rate is large, the temperature at the edge of the saw blade is too low or drops too fast, resulting in waste of coolant.

[0076] According to an embodiment of the present invention, in formula (3), if the minimum value of the change rate of the first temperature data is less than or equal to the negative first preset change rate, then is negative, is the normal temperature change rate allowed when cutting a piece of material, is the gap between the change rate of the first temperature data and the normal temperature change rate, , using this coefficient to reduce the coolant flow rate, that is, making the ratio of the reduced coolant flow rate to the coolant flow rate before reduction be , and it is expected to increase the change rate of the first temperature data to the normal temperature change rate.

[0077] According to an embodiment of the present invention, is the relative deviation between the minimum value of the first temperature data and the lower limit of the first preset temperature range. If , then this relative deviation is negative. can reduce the coolant flow rate, thereby raising the first temperature data within the first preset temperature range.

[0078] According to an embodiment of the present invention, at least one of the minimum value of the change rate of the first temperature data being less than or equal to the negative first preset change rate and the minimum value of the first temperature data being less than the lower limit of the first preset temperature range holds. Therefore, and at least one of them is less than 1, and the minimum value of the two can be taken as the flow adjustment coefficient The increase in the change rate of the first temperature data to the normal temperature change rate and the elevation of the first temperature data within the first preset temperature range can both be achieved, thereby reducing the waste of the coolant.

[0079] In this way, when the rotational speed of the saw blade remains unchanged and the first temperature condition is not satisfied, the specific temperature condition of the saw blade can be analyzed case by case, and the change rate of the first temperature data can be made to reach the allowable change rate through the flow adjustment coefficient, so that the first temperature data reaches within the first preset temperature range, and the temperature change per unit distance reaches the reasonable temperature change per unit distance, thereby reducing the damage to the saw blade, prolonging the service life of the saw blade, and at the same time reducing the waste of the coolant.

[0080] According to an embodiment of the present invention, if the rotational speed of the saw blade changes, regardless of whether the first temperature data before the change in the rotational speed of the saw blade satisfies the first temperature condition, the first temperature data is re-detected after the change in the rotational speed of the saw blade, and it is re-determined whether the first temperature data satisfies the first temperature condition.

[0081] According to an embodiment of the present invention, if the rotational speed of the saw blade changes, then according to the first temperature data, the second temperature data, and the adjusted rotational speed, the adjusted time interval and the adjustment method of the cooling component are determined, including: determining the base time interval according to the adjusted rotational speed; obtaining the first temperature data at multiple moments according to the base time interval, and determining whether the first temperature data satisfies the first temperature condition; if it satisfies the first temperature condition, determining the adjusted time interval according to the base time interval and the adjusted rotational speed; if it does not satisfy the first temperature condition, determining the adjusted time interval according to the base time interval and the adjusted rotational speed, and obtaining the first temperature data and the second temperature data at multiple moments according to the adjusted time interval; determining the adjustment method of the cooling component according to the first temperature data and the second temperature data obtained after determining the adjusted time interval.

[0082] According to an embodiment of the present invention, the base time interval can be set to the duration of the saw blade rotating 10 circles after adjusting the rotational speed. The first temperature data is obtained at multiple consecutive moments (for example, 5 moments or 10 moments), and it is determined whether the first temperature data satisfies the first temperature condition. If it satisfies, then according to the formula the time interval between adjacent detection moments is adjusted to reduce the detection frequency, reduce the data volume, and thus reduce the storage pressure, where is the adjusted rotational speed, is the base time interval.

[0083] According to an embodiment of the present invention, if the first temperature condition is not satisfied, the time interval can be adjusted downward. For example, through the formula Reduce the time interval and increase the detection frequency to achieve more timely monitoring.

[0084] According to an embodiment of the present invention, determining an adjustment method of the cooling component based on first temperature data and second temperature data obtained after determining an adjusted time interval includes: if the maximum value among the first temperature data obtained at multiple moments after the adjusted time interval exceeds the upper limit of a first preset temperature range, and / or the maximum value of the change rate of the first temperature data is greater than or equal to a first preset change rate, then determining a flow rate adjustment coefficient of the coolant of the cooling component according to the maximum value and the minimum value of the first temperature data obtained at multiple moments after the adjusted time interval, the second temperature data, and the first preset temperature range; otherwise, determining the flow rate adjustment coefficient of the coolant of the cooling component according to the maximum value and the minimum value of the first temperature data obtained at multiple moments after the adjusted time interval, and the first preset temperature range.

[0085] For example, multiple moments of first temperature data and second temperature data can be obtained based on the adjusted time interval, and it is determined whether there is a situation where the maximum value among the first temperature data obtained at multiple consecutive moments exceeds the upper limit of the first preset temperature range, and / or the maximum value of the change rate of the first temperature data is greater than or equal to the first preset change rate. If so, the flow rate adjustment coefficient is determined according to formula (2); otherwise, the flow rate adjustment coefficient is determined according to formula (3).

[0086] According to an embodiment of the present invention, after determining the flow rate adjustment coefficient, the current flow rate of the coolant of the cooling component can be multiplied by the flow rate adjustment coefficient to obtain the adjusted flow rate of the coolant, and the flow rate of the coolant sprayed by the cooling component is adjusted to the adjusted flow rate of the coolant.

[0087] The saw blade temperature monitoring system according to an embodiment of the present invention can monitor the temperature of the saw blade through the first temperature sensor and the second temperature sensor group to determine whether the cooling component can effectively cool the saw blade, and can adjust the settings of the cooling component in a timely manner when it is difficult for the cooling component to effectively cool the saw blade or the rotation speed of the saw blade changes, so as to effectively protect the saw blade, improve the service life and cutting efficiency of the saw blade. Further, when the first temperature data is normal and stable and the working state of the saw blade is stable, the interval duration can be extended by increasing the number of revolutions of the saw blade during the increased temperature measurement time interval, reducing the temperature measurement frequency, thereby reducing the data storage pressure. And when the rotation speed of the saw blade does not change and the first temperature condition is not met, the specific temperature condition of the saw blade can be analyzed case by case, and the change rate of the first temperature data can be made to reach the allowable change rate through the flow adjustment coefficient, so that the first temperature data reaches within the first preset temperature range, and the temperature change per unit distance reaches a reasonable temperature change per unit distance, so as to reduce the damage to the saw blade, extend the service life of the saw blade, and reduce the waste of coolant at the same time.

[0088] The present invention can be a method, apparatus, system, and / or computer program product. The computer program product may include a computer-readable storage medium having thereon computer-readable program instructions for performing various aspects of the present invention.

[0089] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The object of the present invention has been fully and effectively achieved. The function and structural principle of the present invention have been shown and described in the embodiments. Without departing from the principle, the embodiments of the present invention can have any deformation or modification.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A saw blade temperature monitoring system, characterized in that, Including: The first temperature sensor and the second temperature sensor group, wherein the second temperature sensor group, the cooling assembly of the circular saw, and the first temperature sensor are arranged in sequence along the rotation direction of the saw blade. The first temperature sensor is used to detect the first temperature data of the saw blade after being cooled by the cooling assembly. The distance between the detection position of the first temperature sensor and the centroid of the saw blade is , where R is the radius of the saw blade, is the first proportionality coefficient. The second temperature sensor group includes n second temperature sensors, which are used to detect the second temperature data of the saw blade before being cooled. The distance between the detection position of the i-th second temperature sensor and the centroid of the saw blade is , , , is the i-th second proportionality coefficient, is the (i + 1)-th second proportionality coefficient, is the first second proportionality coefficient; A processor for: If the first temperature data meets the first temperature condition and the rotation speed of the saw blade remains unchanged, determine an adjusted time interval according to the current time interval between adjacent moments when the first temperature data is obtained and the current rotation speed of the saw blade; If the first temperature data does not meet the first temperature condition, and / or the rotation speed of the saw blade changes, turn on the second temperature sensor group and obtain second temperature data; Determine an adjusted time interval and an adjustment method for the cooling component according to the first temperature data and the second temperature data; The first temperature condition includes: The first temperature data obtained at consecutive multiple moments all belong to the first preset temperature range, and the absolute value of the change rate of the first temperature data between consecutive multiple moments is less than the first preset change rate; Determining the adjusted time interval according to the current time interval between adjacent moments when the first temperature data is obtained and the current rotation speed of the saw blade includes: According to the formula Determine the adjusted time interval , where is the current time interval, is the current rotational speed; Determine the adjusted time interval and the adjustment method of the cooling component according to the first temperature data and the second temperature data, including: If the rotation speed of the saw blade does not change, determine an adjusted time interval and an adjustment method for the cooling component according to the first temperature data, the second temperature data, and the current rotation speed; If the rotation speed of the saw blade changes, determine an adjusted time interval and an adjustment method for the cooling component according to the first temperature data, the second temperature data, and the adjusted rotation speed; If the rotation speed of the saw blade does not change, determining an adjusted time interval and an adjustment method for the cooling component according to the first temperature data, the second temperature data, and the current rotation speed includes: Determine an adjusted time interval according to the current time interval and the current rotation speed; Determine a flow rate adjustment coefficient of the coolant of the cooling component according to the first temperature data and the second temperature data obtained at multiple moments after the second temperature sensor group is turned on; Determining a flow rate adjustment coefficient of the coolant of the cooling component according to the first temperature data and the second temperature data obtained at multiple moments after the second temperature sensor group is turned on includes: If the maximum value among the first temperature data obtained at consecutive multiple moments exceeds the upper limit of the first preset temperature range, and / or the maximum value of the change rate of the first temperature data is greater than or equal to the first preset change rate, then according to the formula Determine the flow rate adjustment coefficient of the coolant of the cooling component , where is the maximum value of the first temperature data at multiple moments after the second temperature sensor group is turned on, is the minimum value of the first temperature data at multiple moments after the second temperature sensor group is turned on, is the moment when the maximum value of the first temperature data is detected, is the moment when the minimum value of the first temperature data is detected, is the upper limit of the first preset temperature range, is the lower limit of the first preset temperature range, is the working duration of a single cut, , is the temperature of the coolant, The nth second proportionality coefficient, is the second temperature data of the ith second temperature sensor obtained at the jth moment after the second temperature sensor group is turned on, The second temperature data of the (i + 1)th second temperature sensor obtained at the jth moment after the second temperature sensor group is turned on, m is the number of moments after the second temperature sensor group is turned on, and max is the function of taking the maximum value; Otherwise, according to the formula Determine the flow rate adjustment coefficient of the coolant of the cooling component , where min is the function of taking the minimum value.

2. The saw blade temperature monitoring system according to claim 1, characterized in that If the rotation speed of the saw blade changes, determine an adjusted time interval and an adjustment method for the cooling component according to the first temperature data, the second temperature data, and the adjusted rotation speed, including: Determine a basic time interval according to the adjusted rotation speed; Obtain the first temperature data at multiple moments according to the basic time interval and determine whether the first temperature data meets the first temperature condition; If it meets the first temperature condition, determine an adjusted time interval according to the basic time interval and the adjusted rotation speed; If it does not meet the first temperature condition, determine an adjusted time interval according to the basic time interval and the adjusted rotation speed, and obtain the first temperature data and the second temperature data at multiple moments according to the adjusted time interval; Determine an adjustment method for the cooling component according to the first temperature data and the second temperature data obtained after determining the adjusted time interval.

3. The saw blade temperature monitoring system according to claim 1, characterized in that, Determine the adjustment method of the cooling component based on the first temperature data and the second temperature data obtained after determining the adjusted time interval, including: if the maximum value of the first temperature data obtained at multiple moments after the adjusted time interval exceeds the upper limit of the first preset temperature range, and / or the maximum value of the change rate of the first temperature data is greater than or equal to the first preset change rate, then determine the flow adjustment coefficient of the coolant of the cooling component according to the maximum and minimum values of the first temperature data obtained at multiple moments after the adjusted time interval, the second temperature data, and the first preset temperature range; otherwise, determine the flow adjustment coefficient of the coolant of the cooling component according to the maximum and minimum values of the first temperature data obtained at multiple moments after the adjusted time interval, and the first preset temperature range.

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