Stone slab cutting device and method thereof

Abstract

The present invention belongs to the field of stone processing technology, and in particular, relates to a stone slab cutting device and method thereof, including a cutting table and a displacement drive mechanism installed on the end face of the cutting table, a control cabinet is installed on the side wall of the cutting table, and the displacement drive mechanism is electrically connected to the control cabinet, and also includes: a mounting plate, the mounting plate is installed on the driving end of the displacement drive mechanism, and a cutting shell is installed on the end of the mounting plate. During the cutting process, the present invention can automatically adjust and offset the reaction force applied by most of the cutting resistance based on the temperature of the saw blade, and try to avoid eccentric wear on the shaft of the circular saw blade, thereby improving the cutting stability of the circular saw blade. At the same time, based on the cutting temperature of the circular saw blade and the vibration frequency and amplitude of the circular saw blade, it can automatically remind personnel to check and maintain the circular saw blade to help improve the cutting quality.

Description

Technical Field

[0001] The invention belongs to the technical field of stone processing, and in particular relates to a stone slab cutting device and a method thereof. Background Art

[0002] Stone slabs are widely used in building decoration and other fields. With the increasing demand for stone slabs in various construction projects, efficient and precise stone slab cutting technology is crucial. Stone slab cutting usually requires the use of professional cutting equipment to divide large stone slabs into specific sizes and shapes.

[0003] At present, there are many types of cutting equipment used for cutting stone slabs, such as common circular saw cutting machines, band saw cutting machines, rope saw cutting machines, etc. Among them, the circular saw is mainly suitable for straight line cutting. For stone slabs that need to be cut into regular shapes such as rectangles, the circular saw can provide higher precision and efficiency, and it can withstand greater cutting force. For stone slabs with higher hardness, it can cut more efficiently, such as a stone slab cutting device disclosed in patent announcement number CN216658500U;

[0004] When a circular saw cutting machine is cutting stone slabs, the circular saw blade will be subject to resistance in the opposite direction of cutting, and the resistance is related to the sharpness of the circular saw blade, the hardness of the stone slab, etc. For example, the sharper the circular saw blade is, the smaller the relative resistance it is subject to. When the circular saw blade is not sharp enough, the resistance it is subject to becomes greater. When the hardness of the stone slab is high, the resistance of the circular saw blade from the stone slab is large, and the relative resistance it is subject to becomes greater. When the circular saw blade is subject to resistance, it will exert opposite pressure on the shaft that drives it to rotate. Even with the effect of a coupling, the bearing connecting the cutting housing and the shaft will be under pressure, resulting in eccentric wear on one side of the bearing (the harder the stone slab is, the more likely this phenomenon will occur). Over time, the bearing clearance will increase, which may cause the circular saw blade to shake when rotating, affecting the cutting stability, and further resulting in poor cutting quality and poor use effect. Summary of the invention

[0005] The object of the present invention is to provide a stone slab cutting device and method thereof in view of the above problems.

[0006] To achieve the above object, the present invention adopts the following technical solutions: a stone slab cutting device, comprising a cutting table and a displacement driving mechanism installed on the end surface of the cutting table, a control cabinet is installed on the side wall of the cutting table, and the displacement driving mechanism is electrically connected to the control cabinet, and also includes:

[0007] A mounting plate, mounted on the driving end of the displacement driving mechanism, a cutting housing being mounted on the end of the mounting plate;

[0008] A cutting drive mechanism is mounted on the side wall of the cutting housing, and a circular saw blade is detachably mounted on the output end of the cutting drive mechanism;

[0009] A plurality of arc-shaped pressing blocks are evenly distributed above the output end of the cutting drive mechanism, each of the arc-shaped pressing blocks is equipped with a pressure rod, a plurality of pressure units are installed on the side wall of the cutting shell, and each pressure unit applies pressure to the arc-shaped pressing block on the same side through the pressure rod, and the inner wall of the cutting shell and each of the arc-shaped pressing blocks are jointly equipped with the same elastic telescopic component;

[0010] A trigger regulating mechanism is installed on the side wall of the cutting shell, and the trigger regulating mechanism is electrically connected to each pressure applying unit through a control cabinet;

[0011] A prompt unit is installed on the side wall of the mounting plate, and the prompt unit is connected to the trigger regulating mechanism;

[0012] The vibration monitoring unit is arranged inside the cutting shell, and the control cabinet controls the prompt unit to work according to the electrical signal output by the vibration monitoring unit.

[0013] Preferably, the cutting drive mechanism includes a driving motor installed on the outer wall of the cutting shell, the output end of the driving motor is rotatably connected to the side wall of the cutting shell, and a mounting disk is installed at the output end of the driving motor, a mounting shaft is installed at the end of the mounting disk away from the driving motor, the circular saw blade is sleeved on the outside of the mounting shaft, and a locking assembly for locking the circular saw blade is installed on the mounting shaft, the driving motor is electrically connected to the control cabinet, and each of the arc-shaped pressure blocks is evenly distributed within a range of 180° above the mounting disk.

[0014] Preferably, each of the pressure units includes an electromagnetic push rod fixedly inserted into the side wall of the cutting shell, and an upper extrusion block is installed at the telescopic end of the electromagnetic push rod, and the lower end of the upper extrusion block is inclined. A lower extrusion block is installed at the end of the pressure rod away from the mounting plate, and the top of the lower extrusion block is inclined. The inclined surface of the upper extrusion block is in sliding contact with the inclined surface of the lower extrusion block, and the electromagnetic push rod is electrically connected to the control cabinet.

[0015] Preferably, the elastic telescopic component includes an arc-shaped plate fixedly mounted on the inner wall of the cutting shell, and each pressure rod is slidably connected to the side wall of the arc-shaped plate, and a spring is fixed between the end of each arc-shaped pressure block away from the mounting plate and the inner wall of the arc-shaped plate.

[0016] Preferably, the triggering and regulating mechanism includes an air suction hood fixedly mounted on the inner wall of the cutting shell, and the air suction hood is arranged on one side of the upper side wall of the circular saw blade, a plurality of air suction holes are opened on the side wall of the air suction hood, two insulating rods are fixedly mounted inside the air suction hood, and a thermistor is fixedly mounted between the two insulating rods, an air pump is mounted on the end surface of the mounting plate, and an air suction pipe connected to the air suction hood is mounted on the air suction end of the air pump, the air pump is electrically connected to the control cabinet, and the thermistor is electrically connected to each electromagnetic push rod through the control cabinet.

[0017] Preferably, the prompt unit includes a sealing cover fixedly mounted on the side wall of the mounting plate, the air outlet end of the air pump is connected to the sealing cover, the end face of the sealing cover is provided with a first exhaust hole and a second exhaust hole, and the first exhaust hole and the second exhaust hole are both provided with normally open solenoid valves, an air pressure automatic switch electrically connected to a control cabinet is provided inside the sealing cover, the thermistor is electrically connected to the normally open solenoid valve inside the first exhaust hole through the control cabinet, and the control cabinet generates an alarm signal according to the closing electrical signal of the air pressure automatic switch.

[0018] Preferably, the vibration monitoring unit includes two side panels fixedly mounted on the inner top of the cutting shell, and the two side panels are arranged directly above the circular saw blade, the two side panels are hinged together with two insulating rods, and the two insulating rods are respectively arranged on both sides of the circular saw blade, the bottom of the two insulating rods are installed with connecting blocks, the side walls of the two connecting blocks on the opposite sides are rotatably connected with ball bearings, and the ball bearings are in contact with the side walls of the circular saw blade, the upper outer sides of the two insulating rods are provided with arc-shaped insulating plates, and the inner walls of the two arc-shaped insulating plates on the opposite sides are installed with arc-shaped conductive strips, the tops of the two insulating rods are installed with conductive columns matching the arc-shaped conductive strips, and the arc-shaped conductive strips and the conductive columns are electrically connected to the normally open solenoid valve inside the second exhaust hole through the control cabinet.

[0019] A method for a stone slab cutting device, the method comprising the following steps:

[0020] S1. Install the stone slab to be cut on the cutting table and fix it;

[0021] S2, start the control cabinet, the control cabinet controls the displacement drive mechanism to drive the installation plate to move according to the preset program, and at the same time, the control cabinet starts the cutting drive mechanism, so that the circular saw blade cuts the stone slab according to the preset route;

[0022] S3, 15 seconds after the control cabinet is started, the control cabinet controls the triggering and regulating mechanism to start working. At the same time, the control cabinet connects the thermosensitive element of the triggering and regulating mechanism with the connection circuits of each pressure unit according to the preset program, and the pressure unit applies a pressing force opposite to the cutting resistance to the mounting plate through the upper pressing block, the lower pressing block, the pressing rod and the arc-shaped pressing block;

[0023] S4. During the cutting process, if the control cabinet generates an alarm signal, the personnel should shut down the control cabinet in time and check or replace the circular saw blade;

[0024] S5. After the stone slabs are cut by the circular saw blade, the cut stone slabs are removed in sequence.

[0025] Compared with the existing technology, the advantages of a stone slab cutting device and method are:

[0026] Through the cooperation of the cutting table, displacement drive mechanism, control cabinet, mounting plate, cutting shell, circular saw blade and cutting drive mechanism, the stone slabs can be cut quickly and accurately, and through the cooperation of the arc-shaped pressure block, pressure rod, various pressure units and elastic telescopic components, during the circular saw blade cutting process, an opposite force can be applied to the shaft driving the circular saw blade to rotate, thereby offsetting most of the reaction force applied by the cutting resistance, thereby avoiding eccentric wear on the shaft of the circular saw blade as much as possible and improving the cutting stability of the circular saw blade.

[0027] Through the set trigger control mechanism, the pressure applied to the circular saw blade shaft can be automatically controlled based on the temperature generated by the circular saw blade during cutting, so that the pressure applied can be automatically adjusted according to different working conditions to improve the effect of counter-pushing the circular saw blade shaft. Secondly, in conjunction with the set reminder unit, it can remind personnel to check and maintain the circular saw blade in time when the circular saw blade may be excessively worn.

[0028] By setting up a vibration monitoring unit, the vibration and deformation of the circular saw blade can be monitored online during the operation of the circular saw blade, and in conjunction with the prompt unit, the staff can be automatically reminded when the circular saw blade has abnormal high-frequency vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional structural schematic diagram of a stone slab cutting device provided by the present invention;

[0030] Figure 2 It is a three-dimensional structural schematic diagram of a mounting plate and a cutting shell of a stone slab cutting device provided by the present invention;

[0031] Figure 3 It is a structural schematic diagram of a cutting drive mechanism of a stone slab cutting device provided by the present invention;

[0032] Figure 4 The present invention provides a stone plate cutting device Figure 3 A magnified view of the structure of part A;

[0033] Figure 5It is a schematic diagram of the partial structure of the inner upper side of a cutting shell of a stone slab cutting device provided by the present invention;

[0034] Figure 6 The present invention provides a stone plate cutting device Figure 5 A magnified view of the structure of part B;

[0035] Figure 7 The present invention is a schematic diagram of the internal side structure of a shell of a stone slab cutting device provided by the present invention.

[0036] In the figure: 1 cutting table, 2 displacement drive mechanism, 3 control cabinet, 4 mounting plate, 5 cutting shell, 6 cutting drive mechanism, 61 drive motor, 62 mounting plate, 63 mounting shaft, 64 locking assembly, 7 circular saw blade, 8 arc-shaped pressing block, 9 pressure rod, 10 pressure unit, 101 electromagnetic push rod, 102 upper extrusion block, 103 lower extrusion block, 11 elastic telescopic assembly, 111 arc plate, 112 spring, 12 trigger control mechanism, 121 Suction hood, 122 suction hole, 123 insulating rod, 124 thermal element, 125 air pump, 126 suction pipe, 13 prompt unit, 131 sealing cover, 132 first exhaust hole, 133 second exhaust hole, 134 air pressure automatic switch, 135 normally open solenoid valve, 14 vibration monitoring unit, 141 side plate, 142 insulating rod, 143 connecting block, 144 ball, 145 arc-shaped insulating plate, 146 arc-shaped conductive strip, 147 conductive column. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] like Figure 1-Figure 7As shown, a stone slab cutting device includes a cutting table 1 and a displacement drive mechanism 2 installed on the end surface of the cutting table 1, a control cabinet 3 is installed on the side wall of the cutting table 1, and the displacement drive mechanism 2 is electrically connected to the control cabinet 3, and also includes: a mounting plate 4, the mounting plate 4 is installed on the driving end of the displacement drive mechanism 2, a cutting shell 5 is installed on the end of the mounting plate 4, a cutting drive mechanism 6 is installed on the side wall of the cutting shell 5, a circular saw blade 7 is detachably installed on the output end of the cutting drive mechanism 6, the cutting drive mechanism 6 includes a driving motor 61 installed on the outer side wall of the cutting shell 5, the output end of the driving motor 61 is rotatably connected to the side wall of the cutting shell 5, and the output end of the driving motor 61 is installed with a mounting plate 6 2. An installation shaft 63 is installed at one end of the installation disk 62 away from the driving motor 61. The circular saw blade 7 is sleeved on the outer side of the installation shaft 63, and the installation shaft 63 is installed with a locking assembly 64 for locking the circular saw blade 7. The driving motor 61 is electrically connected to the control cabinet 3. Each arc-shaped pressing block 8 is evenly distributed within a range of 180° above the installation disk 62. The locking assembly 64 includes nuts, gaskets, snap rings and other components, which can lock and fix the circular saw blade 7 on the installation disk 62. The cutting shell 5 includes a shell cover, a shell cover, bolts, etc. The shell cover is detachably connected to the shell cover by bolts. When disassembling the circular saw blade 7, first remove the shell cover, then remove the locking assembly 64, and then remove the circular saw blade 7.

[0039] A plurality of arc-shaped pressing blocks 8 are evenly distributed above the output end of the cutting drive mechanism 6, each arc-shaped pressing block 8 is equipped with a pressure rod 9, and a plurality of pressure units 10 are installed on the side wall of the cutting housing 5, and each pressure unit 10 applies pressure to the arc-shaped pressing block 8 on the same side through the pressure rod 9, and each pressure unit 10 includes an electromagnetic push rod 101 fixedly plugged into the side wall of the cutting housing 5, and an upper extrusion block 102 is installed at the telescopic end of the electromagnetic push rod 101, and the lower end of the upper extrusion block 102 is inclined, and the pressure rod 9 is away from the mounting plate 62. A lower extrusion block 103 is installed at the end, and the top of the lower extrusion block 103 is inclined, the inclined surface of the upper extrusion block 102 is in sliding contact with the inclined surface of the lower extrusion block 103, the electromagnetic push rod 101 is electrically connected to the control cabinet 3, and the electromagnetic push rod 101 includes components such as a magnetic isolation cylinder, an electromagnetic part, a permanent magnet, a telescopic rod, and an elastic part. After the electromagnetic part is energized, a magnetic repulsion force is generated on the permanent magnet, so that the telescopic rod can be pushed to move by the permanent magnet, wherein each arc-shaped pressure block 8 can be removed from the pressure rod 9 to facilitate the replacement of the arc-shaped pressure block 8.

[0040] The inner wall of the cutting shell 5 and each arc-shaped pressure block 8 are jointly installed with an elastic telescopic component 11, and the elastic telescopic component 11 includes an arc-shaped plate 111 fixedly installed on the inner wall of the cutting shell 5, and each pressure rod 9 is slidably connected to the side wall of the arc-shaped plate 111, and a spring 112 is fixedly provided between the end of each arc-shaped pressure block 8 away from the mounting plate 62 and the inner wall of the arc-shaped plate 111. The spring 112 can assist the arc-shaped pressure block 8 to move upward after the extrusion force of the upper extrusion block 102 on the lower extrusion block 103 is reduced.

[0041] The trigger control mechanism 12 is installed on the side wall of the cutting shell 5. The trigger control mechanism 12 is electrically connected to each pressure unit 10 through the control cabinet 3. The trigger control mechanism 12 includes an air suction hood 121 fixedly installed on the inner wall of the cutting shell 5, and the air suction hood 121 is arranged on the upper side wall of the circular saw blade 7. The side wall of the air suction hood 121 is provided with a plurality of air suction holes 122. Two insulating rods 123 are fixedly installed inside the air suction hood 121, and a thermistor 124 is fixedly installed between the two insulating rods 123. An air pump 125 is installed on the end surface of the mounting plate 4, and an air suction pipe 126 connected to the air suction hood 121 is installed at the air suction end of the air pump 125. The air pump 125 is electrically connected to the control cabinet 3. The thermistor 124 is electrically connected to each electromagnetic push rod 101 through the control cabinet 3. Within a certain temperature range, the resistance of the thermistor 124 decreases as the temperature increases.

[0042] The prompt unit 13 is installed on the side wall of the mounting plate 4, and the prompt unit 13 is connected to the trigger control mechanism 12. The prompt unit 13 includes a sealing cover 131 fixedly installed on the side wall of the mounting plate 4. The air outlet end of the air pump 125 is connected to the sealing cover 131. The end surface of the sealing cover 131 is provided with a first exhaust hole 132 and a second exhaust hole 133, and the first exhaust hole 132 and the second exhaust hole 133 are both internally provided with a normally open solenoid valve 135. An air pressure automatic switch 134 electrically connected to the control cabinet 3 is installed inside the sealing cover 131. The thermistor 124 is electrically connected to the normally open solenoid valve 135 inside the first exhaust hole 132 through the control cabinet 3. The control cabinet 3 generates an alarm signal according to the closing electrical signal of the air pressure automatic switch 134. Under the action of the increased air pressure, the moving contact of the air pressure automatic switch 134 will gradually move back until it is closed. After the air pressure is restored, the moving contact will immediately rebound and reset under the action of the elastic element.

[0043] The vibration monitoring unit 14 is arranged inside the cutting shell 5, and the control cabinet 3 controls the prompt unit 13 to work according to the electrical signal output by the vibration monitoring unit 14. The vibration monitoring unit 14 includes two side panels 141 fixedly installed on the inner top of the cutting shell 5, and the two side panels 141 are arranged directly above the circular saw blade 7. The two side panels 141 are hinged together with two insulating rods 142, and the two insulating rods 142 are respectively arranged on both sides of the circular saw blade 7. The bottoms of the two insulating rods 142 are both installed with connecting blocks 143, and the side walls of the two connecting blocks 143 facing each other are rotatably connected with ball bearings 144, and the ball bearings 144 are in contact with the side walls of the circular saw blade 7. The two insulating rods An arc-shaped insulating plate 145 is provided on the upper outer side of 142, and an arc-shaped conductive strip 146 is installed on the inner wall facing the opposite side of the two arc-shaped insulating plates 145. A conductive column 147 matching the arc-shaped conductive strip 146 is installed on the top of the two insulating rods 142. The arc-shaped conductive strip 146 and the conductive column 147 are electrically connected to the normally open solenoid valve 135 inside the second exhaust hole 133 through the control cabinet 3. A torsion spring is provided at the connection between the insulating rod 142 and the side plate 141 to assist the insulating rod 142 to rebound normally. Secondly, a buffer pad is provided on the side wall of the arc-shaped insulating plate 145 close to the insulating rod 142 to prevent the insulating rod 142 from hitting the circular saw blade 7 due to excessive rebound force.

[0044] The operating principle of the present invention is now described as follows: the stone plate to be cut is mounted on the cutting table 1 and fixed (the cutting table 1 is provided with a plurality of clamping structures, which can press and fix the stone plate on the cutting table 1, for example, an electric push rod drives the clamping plate to press and fix the stone plate), the control cabinet 3 is started, and the control cabinet 3 controls the displacement drive mechanism 2 to drive the mounting plate 4 to move according to a preset program (the displacement drive mechanism 2 includes an X-axis screw drive assembly, a Y-axis screw drive assembly and a Z-axis oil cylinder drive assembly, and under the cooperation of the X-axis screw drive assembly, the Y-axis screw drive assembly and the Z-axis oil cylinder drive assembly, the control cabinet 3 can control the mounting plate 4 to move along a preset route according to a preset program), and at the same time, the control cabinet 3 starts the drive motor 61, and the output end of the drive motor 61 can rotate the circular saw blade 7 through the mounting plate 62, the mounting shaft 63 and the locking assembly 64, so that the stone plate can be cut according to the preset route;

[0045] 15 seconds after the control cabinet 3 is started, the control cabinet 3 controls the air pump 125 to start working, and the air suction end of the air pump 125 will suck the air inside the cutting shell 5 through the air suction cover 121 and the air suction hole 122. When the circular saw blade 7 is cutting the stone slab, due to the cutting force between the circular saw blade 7 and the stone slab, the circular saw blade 7 will generate a lot of heat. Under the action of the water cooling system (a water cooling system is installed at the bottom of the cutting table 1, and the water cooling system is controlled by the control cabinet 3. Under the control of the control cabinet 3, the water cooling system will circulate and spray water on the circular saw blade 7 and the cutting position of the stone slab, so as to cool the circular saw blade 7 and avoid the circular saw blade 7 The temperature is too high to ensure the continuous cutting work and reduce the escape of cutting dust, and try to avoid cutting dust from entering the cutting shell 5. Secondly, a dust filter is installed at the air hood 121 to prevent cutting dust from being sucked into the air hood 121. Because the whole device will produce micro-vibration during the cutting work, under the action of vibration force, cutting dust is not easy to block the air intake hole 122, or a dust removal structure is installed at the air hood 121, for example, a brush is driven by a micro motor to rotate to prevent dust from adhering to the surface of the air hood 121), which can maintain temperature stability. However, if the sharpness of the circular saw blade 7 is not enough, the cutting of the stone slab by the circular saw blade 7 will be difficult. The efficiency decreases, and the friction between the circular saw blade 7 and the stone slab increases. At this time, the heat generated by the circular saw blade 7 will increase rapidly. Secondly, when the circular saw blade 7 cuts the position of the stone slab with a relatively high hardness (stone is composed of a variety of minerals, and the hardness of different minerals varies greatly. For example, granite is mainly composed of minerals such as quartz, feldspar and mica. The hardness of quartz is relatively high, while the hardness of mica is relatively low. These minerals are not evenly distributed in the stone slab, resulting in different hardnesses at different positions of the stone slab), the friction of the stone slab on the circular saw blade 7 will also increase. At this time, the temperature of the circular saw blade 7 will also increase, that is, when the circular saw blade 7 is not sharp enough and the hardness of the stone slab is relatively high, the circular saw blade 7 will be cut. When the circular saw blade 7 is in the normal working state, its temperature is higher (generally at least 15°C higher) than that in the normal working state. Since the air pump 125 draws the air inside the cutting shell 5 into the air suction cover 121, the airflow will take away part of the heat of the circular saw blade 7 (the water cooling system can be used to assist the circular saw blade 7 to further dissipate heat and cool down), thereby increasing the temperature of the thermistor 124. That is, when the circular saw blade 7 is in the normal working state, under the action of the water cooling system, the temperature of the circular saw blade 7 will remain stable. If the sharpness of the circular saw blade 7 is insufficient, and when cutting an area where the hardness of the stone plate is relatively large, the temperature of the thermistor 124 will also increase due to the increase in the temperature of the circular saw blade 7.

[0046] When the control cabinet 3 controls the driving motor 61 to work, it will control each electromagnetic push rod 101 to work according to the preset program. The working electromagnetic push rod 101 is opposite to the cutting direction. For example, when the circular saw blade 7 moves from top to bottom, the control cabinet 3 will connect the uppermost electromagnetic push rod 101 to the connection circuit of the thermistor 124. When the circular saw blade 7 cuts from left to right, the control cabinet 3 will connect the leftmost electromagnetic push rod 101 to the connection circuit of the thermistor 124. If the sharpness of the circular saw blade 7 is insufficient, or when the circular saw blade 7 cuts an area with a relatively high hardness of the stone slab, the circular saw blade 7 will encounter increased resistance, so the reaction force on the mounting shaft 63 and the mounting disk 62 will increase. Since the temperature of the circular saw blade 7 increases at this time, the temperature of the thermistor 124 increases synchronously. At this time, the resistance of the thermistor 124 decreases synchronously (the resistance value of the thermistor 124 decreases with the increase of temperature within the temperature range of 0°C to 100°C), so the corresponding The current inside the electromagnetic push rod 101 will increase synchronously. At this time, the pushing force applied by the electromagnetic push rod 101 to the upper extrusion block 102 increases (when the current flowing through the electromagnetic component inside the electromagnetic push rod 101 increases, the magnetic repulsion force it generates on the permanent magnet increases), and the displacement of the upper extrusion block 102 increases, thereby increasing the downward pressure applied to the lower extrusion block 103. The lower extrusion block 103 increases the counter-pushing force applied to the mounting plate 62 through the pressure rod 9 and the arc-shaped pressing block 8 (the inner pressure of the arc-shaped pressing block 8 increases the pressure of the mounting plate 62). The arc surface is provided with a plurality of rotating cylinders for reducing the friction between the arc-shaped pressing block 8 and the mounting plate 62 to avoid affecting the normal rotation of the mounting plate 62), ensuring that when the resistance of the circular saw blade 7 increases, the counter-force exerted by the arc-shaped pressing block 8 on the mounting plate 62 increases synchronously. Since the mounting plate 62 is subjected to the counter-force, most of the reaction force of the mounting plate 62 due to the cutting resistance can be offset, thereby avoiding the occurrence of eccentric wear at the output end of the circular saw blade 7 and the drive motor 61 as much as possible;

[0047] Secondly, when the air pump 125 is working, the airflow it outputs will enter the interior of the sealing cover 131 and be discharged through the first exhaust hole 132 and the second exhaust hole 133 (the first exhaust hole 132 and the second exhaust hole 133 are located directly above the drive motor 61, which can assist the airflow around the drive motor 61, thereby facilitating the heat dissipation of the drive motor 61. When the circular saw blade 7 is in normal working condition, the water cooling system can keep the circular saw blade 7 at a relatively low temperature, and the temperature is relatively stable. At this time, the airflow passing through the circular saw blade 7 carries less heat, which can meet the needs of the drive motor 61. When the circular saw blade 7 is not sharp enough, the heat generated by the circular saw blade 7 due to cutting increases, and the temperature of the thermistor 124 rises. At this time, the current intensity of the normally open solenoid valve 135 passing through the first exhaust hole 132 increases, so the opening degree of the valve plate of the normally open solenoid valve 135 decreases (the greater the current passing through the electromagnetic component of the normally open solenoid valve 135, the greater the magnetic attraction generated by the electromagnetic component of the normally open solenoid valve 135, and the greater the degree of attraction of the valve plate to close, that is, the smaller the opening degree of the valve plate). At this time, due to the first exhaust hole 132, the electromagnetic component of the normally open solenoid valve 135 is opened. The exhaust aperture of the exhaust hole 132 becomes smaller, so the air pressure inside the sealing cover 131 will increase. When the circular saw blade 7 is seriously worn, the circular saw blade 7 will generate too much heat due to excessive resistance. At this time, the opening degree of the valve plate of the normally open solenoid valve 135 is very small, and the air pressure inside the sealing cover 131 will squeeze the moving contact of the closed air pressure automatic switch 134. After the control cabinet 3 receives the closing electrical signal of the air pressure automatic switch 134, the control cabinet 3 will immediately generate an alarm signal through its own alarm module (for example, through a buzzer to remind the on-site workers). Similarly, when the hardness of the stone slab cut by the circular saw blade 7 is too high, the heat generated by the circular saw blade 7 during cutting will also be too high, and the circular saw blade 7 may be excessively worn due to the high hardness of the stone slab. Therefore, the control cabinet 3 will also generate an alarm signal through its own alarm module and suspend the cutting work (subsequent manual confirmation is required to restart the control cabinet 3, and the control cabinet 3 can continue to control the cutting work). After receiving the alarm signal of the control cabinet 3, the on-site staff should promptly check whether the circular saw blade 7 can meet the use requirements of continuing cutting;

[0048] During the cutting operation of the circular saw blade 7, due to the uneven hardness distribution of the stone plate, the wear degree of each position of the circular saw blade 7 is also different, and the circular saw blade 7 may even be partially deformed, resulting in the circular saw blade 7 being not uniform or partially deformed. At this time, the circular saw blade 7 may vibrate during cutting (the vibrating circular saw blade 7 may not only affect the cutting accuracy and quality, but also increase the workload of the driving motor 61, affecting the normal cutting operation). At this time, due to the vibration of the circular saw blade 7, the two insulating rods 142 are connected to the connecting block 143 and the ball bearing 144. 4, it will vibrate synchronously with the circular saw blade 7. During the rotation of the two insulating rods 142 toward the side away from the circular saw blade 7, the conductive posts 147 at the tops of the two insulating rods 142 will contact the arc-shaped conductive strips 146 on the same side. The greater the vibration amplitude, the farther the contact position between the conductive posts 147 and the arc-shaped conductive strips 146 is from the circular saw blade 7. At this time, the normally open solenoid valve 135 inside the second exhaust hole 133 will also be energized. When the vibration amplitude is small, the length of the arc-shaped conductive strip 146 connected to the connection circuit between the conductive posts 147 and the corresponding normally open solenoid valve 135 is longer, and the normally open solenoid valve 135 is connected to the conductive posts 147. When the vibration amplitude increases, the closure degree of the valve plate of the normally open solenoid valve 135 will also increase. At this time, the air outlet diameter of the second exhaust hole 133 becomes smaller. Only under the action of the first exhaust hole 132, the air flow inside the sealing cover 131 cannot be discharged in time. Therefore, the air pressure inside the sealing cover 131 increases, thereby closing the moving contact of the air pressure automatic switch 134. The control cabinet 3 immediately alarms through its own alarm module and suspends the cutting work. The control cabinet 3 needs to be manually restarted later to resume the cutting work. (wherein, when the circular saw blade 7 vibrates at a high frequency, due to the instability of the circular saw blade 7, the friction between the circular saw blade 7 and the stone plate will also increase, and at this time, the temperature of the circular saw blade 7 will usually increase, so the opening degree of the normally open electromagnetic valve 135 inside the first exhaust hole 132 will also become smaller, so the air pressure inside the sealing cover 131 will further increase. Therefore, when the circular saw blade 7 vibrates abnormally at a high frequency, the moving contact of the air pressure automatic switch 134 will usually close faster, generally within 20 seconds, to prevent the circular saw blade 7 from working for too long under the working state of abnormal high-frequency vibration);

[0049] As the circular saw blade 7 moves and cuts, the stone slab is gradually cut. After the cutting work is completed, the control cabinet 3 stops working and drives the mounting plate 4 to return to the origin. At the same time, the staff can take down the cut stone slabs one by one.

[0050] Among them, due to the different ambient temperatures when the circular saw blade 7 is working and the different temperatures of the circulating water in the water cooling system, the temperature of the circular saw blade 7 may be affected, thereby affecting the accuracy of the resistance adjustment of the thermistor 124. Therefore, a temperature monitor that monitors the ambient temperature and the circulating water temperature of the water cooling system needs to be installed at the cutting table 1. The control cabinet 3 adjusts the resistance of the thermistor 124 connection circuit based on the temperature monitor. For example, when the ambient temperature is high, the temperature of the circular saw blade 7 will also rise synchronously. At this time, the resistance of the thermistor 124 decreases a lot. At this time, the control cabinet 3 appropriately increases the resistance of the thermistor 124 connection circuit according to the electrical signal output by the temperature monitor to balance the impact of the external ambient temperature.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A stone slab cutting device, comprising a cutting table (1) and a displacement drive mechanism (2) mounted on the end surface of the cutting table (1), a control cabinet (3) being mounted on the side wall of the cutting table (1), and the displacement drive mechanism (2) being electrically connected to the control cabinet (3), characterized in that: Also includes: A mounting plate (4) mounted on the driving end of the displacement drive mechanism (2), a cutting housing (5) being mounted on the end of the mounting plate (4); A cutting drive mechanism (6) is mounted on a side wall of the cutting housing (5), and a circular saw blade (7) is detachably mounted on an output end of the cutting drive mechanism (6); A plurality of arc-shaped pressing blocks (8) are evenly distributed above the output end of the cutting drive mechanism (6), each of the arc-shaped pressing blocks (8) is equipped with a pressure rod (9), a plurality of pressure units (10) are installed on the side wall of the cutting shell (5), and each pressure unit (10) applies pressure to the arc-shaped pressing block (8) on the same side through the pressure rod (9), and the inner wall of the cutting shell (5) and each of the arc-shaped pressing blocks (8) are jointly equipped with the same elastic telescopic component (11); A trigger regulating mechanism (12) is mounted on a side wall of the cutting housing (5), and the trigger regulating mechanism (12) is electrically connected to each pressure applying unit (10) through a control cabinet (3); A prompt unit (13) is mounted on a side wall of the mounting plate (4), and the prompt unit (13) is connected to the trigger regulating mechanism (12); A vibration monitoring unit (14) is arranged inside the cutting housing (5), and the control cabinet (3) controls the prompt unit (13) to operate according to an electrical signal output by the vibration monitoring unit (14); The cutting drive mechanism (6) comprises a driving motor (61) mounted on the outer wall of the cutting housing (5), the output end of the driving motor (61) being rotatably connected to the side wall of the cutting housing (5), and the output end of the driving motor (61) being mounted with a mounting plate (62), and the mounting plate (62) being mounted with a mounting shaft (63) at one end away from the driving motor (61), the circular saw blade (7) being sleeved on the outer side of the mounting shaft (63), and the mounting shaft (63) being mounted with a locking assembly (64) for locking the circular saw blade (7), the driving motor (61) being electrically connected to the control cabinet (3), and the arc-shaped pressing blocks (8) being evenly distributed within a range of 180° above the mounting plate (62); Each of the pressure-applying units (10) comprises an electromagnetic push rod (101) fixedly plugged into the side wall of the cutting housing (5), and an upper extrusion block (102) is installed at the telescopic end of the electromagnetic push rod (101), and the lower end of the upper extrusion block (102) is inclined, and a lower extrusion block (103) is installed at the end of the pressure-applying rod (9) away from the mounting plate (62), and the top of the lower extrusion block (103) is inclined, and the inclined surface of the upper extrusion block (102) is in sliding contact with the inclined surface of the lower extrusion block (103), and the electromagnetic push rod (101) is electrically connected to the control cabinet (3); The elastic telescopic component (11) comprises an arc-shaped plate (111) fixedly mounted on the inner wall of the cutting shell (5), and each pressure rod (9) is slidably connected to the side wall of the arc-shaped plate (111), and a spring (112) is fixedly provided between the end of each arc-shaped pressing block (8) away from the mounting plate (62) and the inner wall of the arc-shaped plate (111); The trigger control mechanism (12) comprises an air suction hood (121) fixedly mounted on the inner wall of the cutting shell (5), and the air suction hood (121) is arranged on one side of the upper side wall of the circular saw blade (7), a plurality of air suction holes (122) are opened on the side wall of the air suction hood (121), two insulating rods (123) are fixedly mounted inside the air suction hood (121), and a thermal element (124) is fixedly mounted between the two insulating rods (123), an air pump (125) is mounted on the end surface of the mounting plate (4), and an air suction pipe (126) connected to the air suction hood (121) is mounted on the air suction end of the air pump (125), the air pump (125) is electrically connected to the control cabinet (3), and the thermal element (124) is electrically connected to each electromagnetic push rod (101) through the control cabinet (3); The prompt unit (13) comprises a sealing cover (131) fixedly mounted on a side wall of the mounting plate (4); an air outlet end of the air pump (125) is in communication with the sealing cover (131); a first exhaust hole (132) and a second exhaust hole (133) are provided on an end surface of the sealing cover (131); a normally open solenoid valve (135) is installed inside the first exhaust hole (132) and the second exhaust hole (133); an air pressure automatic switch (134) electrically connected to the control cabinet (3) is installed inside the sealing cover (131); the thermistor (124) is electrically connected to the normally open solenoid valve (135) inside the first exhaust hole (132) through the control cabinet (3); and the control cabinet (3) generates an alarm signal according to a closing electrical signal of the air pressure automatic switch (134).

2. A stone slab cutting device according to claim 1, characterized in that: The vibration monitoring unit (14) comprises two side panels (141) fixedly mounted on the inner top of the cutting housing (5), and the two side panels (141) are both arranged directly above the circular saw blade (7), the two side panels (141) are hingedly connected to two insulating rods (142), and the two insulating rods (142) are respectively arranged on both sides of the circular saw blade (7), the bottoms of the two insulating rods (142) are both mounted with connecting blocks (143), and the side walls of the two connecting blocks (143) facing each other are both rotatably connected with balls (144), and the balls (144) are rotatably connected to the side walls of the two connecting blocks (143). 44) is in contact with the side wall of the circular saw blade (7), an arc-shaped insulating plate (145) is provided on the upper outer side of the two insulating rods (142), and an arc-shaped conductive strip (146) is installed on the inner wall of the two arc-shaped insulating plates (145) facing each other, and a conductive column (147) matching the arc-shaped conductive strip (146) is installed on the top of the two insulating rods (142), and the arc-shaped conductive strip (146) and the conductive column (147) are electrically connected to the normally open solenoid valve (135) inside the second exhaust hole (133) through the control cabinet (3).

3. A method for applying the stone slab cutting device according to claim 2, characterized in that: The method comprises the following steps: S1, installing the stone slab to be cut on the cutting table (1) and fixing it; S2, starting the control cabinet (3), the control cabinet (3) controls the displacement drive mechanism (2) to drive the mounting plate (4) to move according to a preset program, and at the same time, the control cabinet (3) starts the cutting drive mechanism (6) so that the circular saw blade (7) cuts the stone slab according to a preset route; S3, 15 seconds after the control cabinet (3) is started, the control cabinet (3) controls the trigger control mechanism (12) to start working. At the same time, the control cabinet (3) connects the thermosensitive element (124) of the trigger control mechanism (12) with the connection circuits of each pressure unit (10) according to a preset program, and the pressure unit (10) applies a pressing force opposite to the cutting resistance to the mounting plate (62) through the upper pressing block (102), the lower pressing block (103), the pressing rod (9) and the arc-shaped pressing block (8); S4. During the cutting process, when the control cabinet (3) generates an alarm signal, the personnel should promptly shut down the control cabinet (3) and check or replace the circular saw blade (7); S5. After the stone slabs are cut by the circular saw blade (7), the cut stone slabs are removed in sequence.

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