CN113482610A

CN113482610A - Double-cutter four-track disc cutting machine control system and control method thereof

Info

Publication number: CN113482610A
Application number: CN202110749690.0A
Authority: CN
Inventors: 林智芳; 洪培英; 华新陆; 林榕栋
Original assignee: Quanzhou Haiende Electromechanical Technology Development Co ltd
Current assignee: Quanzhou Haiende Electromechanical Technology Development Co ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2021-10-08

Abstract

The invention discloses a double-cutter four-track disc cutting machine control system and a control method thereof, belonging to the technical field of stone processing mechanical equipment, and comprising a track, a left saw blade, a right saw blade, a controller, a left feeding device and a right feeding device for controlling the forward feeding of the saw blade along the track, a left lifting device and a right lifting device for controlling the up-and-down movement of the saw blade, and a left variable speed motor and a right variable speed motor for controlling the rotation of the saw blade, wherein the output end of the controller is connected with the input ends of the left feeding device, the right feeding device, the left lifting device, the right lifting device, the left variable speed motor and the right variable speed motor; the control method comprises the following steps: starting the cutting machine, and controlling the left and right horizontal cylinders to adjust the saw blade to a specified transverse position; setting a cutting mode and cutting; and after the cutting is finished, the saw blade is kept to continue rotating, and the saw blade is lifted to finish the primary cutting. The invention has the beneficial effects that: the rotating speed and the downward forward feeding speed of the saw blade are controlled, the saw blade is not easy to break, the normal use of the saw blade can be ensured, and the working efficiency is not influenced.

Description

Double-cutter four-track disc cutting machine control system and control method thereof

Technical Field

The invention relates to the technical field of stone processing machinery and equipment, in particular to a double-cutter four-track disc cutting machine control system and a control method thereof.

Background

The existing stone mining machinery for mining mines is generally adopted, and the stone mining machinery is developed from the initial stage that a single saw is provided with a single saw blade to the stage that two ends of a main shaft of the single saw are respectively provided with a plurality of saw blades, so that the stone mining of the stone mining machine is more and more convenient, and the stone mining efficiency is gradually improved. However, the properties of stones mined by the conventional quarrying machine are not completely the same in the mining process, the stones in a certain part of the mine may have higher or lower hardness than the stones in another part, and the effects of resistance and the like received by the stones with different hardness when the saw blade cuts the stones are different.

For example, the invention patent with the publication number of CN102022117B discloses a double-spliced adjustable-distance mine quarrying machine, which comprises a machine base, upright posts and a sawing machine, wherein a sliding plate with a transverse guide groove is respectively pivoted on two upright post guide rails, two ends of a gear box are slidably pivoted in the transverse guide grooves of the two sliding plates, and a synchronous lifting driving mechanism is pivoted between the two sliding plates and the upright posts on the same side; the gear box is divided into a gear cavity and a cavity, the gear cavity is of a three-shaft structure and sequentially comprises a motor shaft, an intermediate shaft and an output shaft, the three shafts are in meshing transmission through two groups of gear sets, and the end face of the motor is fixedly suspended on the side face of the gear box; the sliding plate is pivoted with two gearboxes of two independent sawing machines side by side, the two gearboxes rotate 180 degrees mutually, a motor hung on the side surface of the gearbox can be inserted into a cavity of the other gearbox, and saw blades on output shafts of the two gearboxes are positioned on the far side and on the same axis; a baffle is fixed at the middle position of the two sliding plates, and a driving oil cylinder is respectively arranged between the baffle and the two gearboxes, so that the position of the saw blade is adjusted by the action of the oil cylinder. This quarrying machine can't adjust to saw bit rotational speed, the feeding motion of decurrent forward direction in cutting process to the condition such as easily lead to the saw bit to collapse takes place, reduces saw bit life and influences the operating efficiency, raise the cost.

Disclosure of Invention

The problems that in the prior art, the hardness of a part of stone materials on a mine mined by a quarrying machine is possibly higher or lower than that of another part of stone materials in the mining process, the rotation speed of a saw blade and the feeding motion in the downward and forward directions cannot be adjusted in the cutting process of the existing quarrying machine, the saw blade is easy to break during operation, the operation efficiency is reduced and the like are solved. The invention provides a double-knife four-track disc cutting machine control system and a control method thereof, which can adjust the rotating speed, the forward movement and the downward movement of a saw blade in the operation process by controlling a lifting device, a feeding device and a variable speed motor of the double-knife four-track disc cutting machine, so that the saw blade can adjust the speed when cutting stones with different hardness, the normal use of the saw blade is ensured, the saw blade is not easy to break, and the working efficiency is not influenced. The specific technical scheme is as follows:

a double-cutter four-track disc cutting machine control system comprises a track, a left saw blade, a right saw blade, a controller, a left feeding device and a right feeding device for controlling the saw blades to feed forwards along the track, a left lifting device and a right lifting device for controlling the saw blades to move up and down, and a left variable speed motor and a right variable speed motor for controlling the saw blades to rotate, wherein the output end of the controller is connected with the input ends of the left feeding device, the right feeding device, the left lifting device, the right lifting device, the left variable speed motor and the right variable speed motor.

The traditional cutting machine cuts stones at a set operation speed in the process of cutting the quarried stones, the resistance is suddenly increased when the harder stones at a certain position are cut, the rotation speed of a saw blade and the feeding speed of the saw blade forwards cannot be adjusted timely, and then the saw blade is broken or even burnt, even violent vibration occurs, so that the saw blade is broken and scattered, hurts pedestrians and brings serious potential safety hazards; through controller control feeding device, elevating gear and variable speed motor, thereby control saw bit rotation speed and saw bit speed of feeding forward downwards, when the building stones to different hardness cut, can adjust the rotation speed and the operation speed forward downwards of saw bit according to the change of building stones, and then make the saw bit when the cutting, can make the saw bit be difficult to collapse, guarantee the normal use of saw bit, be difficult to produce the potential safety hazard, and can keep the cutting speed of saw bit in reasonable within range, can not influence work efficiency.

Preferably, left side variable speed motor passes through left saw bit rotation axis control the left side saw bit is rotatory, right side variable speed motor passes through right saw bit rotation axis control the right side saw bit is rotatory, the left side saw bit rotation axis with install on the right side saw bit rotation axis and be used for monitoring the left side saw bit with the resistance sensor of right side saw bit resistance with be used for monitoring the vibration sensor of rotation axis vibration, the resistance sensor output vibration sensor output with the controller input links to each other.

Preferably, the cutting machine is provided with a display screen for displaying cutting parameters and an input port for setting the cutting parameters and the cutting mode.

Preferably, the saw blade control device further comprises a left horizontal cylinder and a right horizontal cylinder, wherein the left horizontal cylinder and the right horizontal cylinder are used for controlling the left saw blade and the right saw blade to move left and right, and the input end of the left horizontal cylinder and the input end of the right horizontal cylinder are connected with the output end of the controller.

Preferably, the saw blade fixing device further comprises a left control main body used for installing the left saw blade and the driving structure of the left saw blade, a right control main body used for installing the right saw blade and the driving structure of the right saw blade, and a fixing cylinder used for fixing the left control main body and the right control main body, wherein the input end of the fixing cylinder is connected with the output end of the controller.

Preferably, the saw blade device further comprises a rotation shaft limiting cylinder for limiting the rotation direction of the left saw blade rotation shaft or the right saw blade rotation shaft, and a rotation shaft positioning cylinder for positioning the left saw blade rotation shaft and the right saw blade rotation shaft, wherein the input end of the rotation shaft limiting cylinder and the input end of the rotation shaft positioning cylinder are connected with the output end of the controller.

Preferably, the track comprises a left track and a right track which are formed by four parallel strip-shaped guide rails, and further comprises a left rack and a right rack, the left rack and the right rack are respectively installed on the left track and the right track, the left control main body, the left lifting device, the left variable speed motor and the left horizontal cylinder are installed on the left rack, and the right control main body, the right lifting device, the right variable speed motor and the right horizontal cylinder are installed on the right rack; the left frame with install the frame fixed subassembly that is used for fixing left frame and right frame in the right frame.

Preferably, the fixed subassembly of frame includes the fixed cylinder of frame, the fixed slider of frame and the fixed spout of frame, the fixed cylinder fixed mounting of frame is in on left side frame or the right side frame, every all install one on the fixed cylinder of frame the fixed slider of frame, every the fixed slider of frame all corresponds and is equipped with one the fixed spout of frame cooperatees rather than, the fixed spout of frame with the fixed slider of frame is installed respectively right side frame with on the right side frame.

Preferably, an infrared emitter used for calibrating the rack fixed sliding block is installed in the rack fixed sliding groove, and an infrared receiving plate corresponding to the infrared emitter is installed on one side, close to the rack fixed sliding groove, of the rack fixed sliding block.

Preferably, the input end of the rack fixing cylinder, the input end of the infrared emitter and the input end of the infrared receiving plate are connected with the output end of the controller.

The invention also relates to a control method of the double-knife four-track disc cutting machine control system, which comprises the following control steps:

the method comprises the following steps that firstly, a double-cutter disc cutting machine is started, a left horizontal cylinder and a right horizontal cylinder are controlled to adjust a circular saw blade to a specified transverse position;

setting a cutting mode of the double-cutter four-track disc cutting machine, and starting to cut;

after cutting, keeping the saw blade to continue rotating, and lifting the saw blade of the cutting machine to finish one-time cutting operation;

the cutting mode of the double-cutter four-track disc cutting machine in the second step comprises a first cutting mode, a second cutting mode, a third cutting mode and a fourth cutting mode, wherein the first cutting mode comprises synchronous lifting, synchronous rotation and synchronous forward feeding of a left saw blade and a right saw blade; the second cutting mode is that the left and right saw blades synchronously ascend and descend, asynchronously rotate and synchronously feed forwards; the third cutting mode is that the left and right saw blades synchronously ascend and descend, synchronously rotate and synchronously feed forwards; the fourth cutting mode is that the left and right saw blades synchronously ascend and descend, synchronously rotate and synchronously feed forwards.

Preferably, when being in first kind cutting mode, the fixed cylinder of control frame is fixed two frames, and the fixed subassembly of control main part is fixed two control main parts, and rotatory stopper and the cooperation of removing the spacing groove are fixed two saw bit rotation axes along direction of rotation.

Preferably, when being in the second kind of cutting mode, the fixed cylinder of control frame is fixed two stands, and the fixed subassembly of control main part is fixed two control main parts, and rotatory stopper and the cooperation of annular spacing groove are fixed two saw bit rotation axes along the axis direction.

Preferably, when in the third cutting mode, the control frame fixing cylinder fixes the two vertical columns, the control main body fixing assembly separates the two control main bodies, and the rotating shaft limiting cylinder is in the initial position.

Preferably, when the cutting machine is in the fourth cutting mode, the control frame fixing air cylinder separates the two vertical columns, the control main body fixing assembly separates the two control main bodies, and the rotating shaft limiting cylinder is in the initial position.

Preferably, the step two enters a downward feeding mode, and cutting is started until the cutting is carried out to the specified depth; and entering a forward feeding mode, and continuing to cut until the cutting reaches a specified distance.

Preferably, in the downward feeding mode, the downward feeding speed v1 satisfies the following relationship:

where f01 represents the standard frictional resistance for downward feed, v01 represents the set speed for downward feed, k11 represents the first threshold coefficient of friction, and k12 is the second threshold coefficient of friction.

Preferably, the first threshold coefficient of friction k11 satisfies: 0.05< k11 ≦ 0.20, and the second threshold coefficient of friction k12 satisfies: 0.30< k12 is less than or equal to 0.50.

Preferably, in the downward feeding mode, the blade rotational angular velocity v2 satisfies the following relationship:

where f01 represents the standard frictional resistance for feed down, v02 represents the set angular velocity of rotation of the feed down blade, k21 represents the third threshold coefficient of friction, and k22 is the fourth threshold coefficient of friction.

Preferably, the third friction threshold coefficient k21 satisfies: 0.05< k21 ≦ 0.20, and the fourth threshold coefficient of friction k22 satisfies: 0.30< k22 is less than or equal to 0.50.

Preferably, the downward-feeding standard frictional resistance f01 satisfies the following relationship:

where R represents the radius of the blade, L represents the saw blade down cutting depth, k01 is the blade side friction drag coefficient, k02 is the kerf friction drag coefficient, v01 represents the feed down set speed, and v02 represents the feed down blade rotational set angular speed.

Preferably, in the second step, the vibration condition of the rotating shaft of the saw blade is monitored, and when the vibration amplitude is larger than the set value, the rotating angular speed of the saw blade is reduced until the vibration amplitude is smaller than or equal to the set range.

Preferably, the set value of the vibration amplitude is 8-15 micrometers.

Has the advantages that:

the technical scheme of the invention has the following beneficial effects:

(1) the traditional cutting machine cuts stones at a set operation speed in the process of cutting the quarried stones, the resistance is suddenly increased when the harder stones at a certain position are cut, the rotation speed of a saw blade and the feeding speed of the saw blade forwards cannot be adjusted timely, and then the saw blade is broken or even burnt, even violent vibration occurs, so that the saw blade is broken and scattered, hurts pedestrians and brings serious potential safety hazards; through controller control feeding device, elevating gear and variable speed motor, thereby control saw bit rotation speed and saw bit speed of feeding forward downwards, when the building stones to different hardness cut, can adjust the rotation speed and the operation speed forward downwards of saw bit according to the change of building stones, and then make the saw bit when the cutting, can make the saw bit be difficult to collapse, guarantee the normal use of saw bit, be difficult to produce the potential safety hazard, and can keep the cutting speed of saw bit in reasonable within range, can not influence work efficiency.

(2) The resistance sensor and the vibration sensor which are used for monitoring the resistance and the vibration of the saw blade are arranged on the saw blade rotating shaft, the obtained resistance data and the obtained vibration data are transmitted to the controller, and the controller automatically adjusts the rotating speed, the downward feeding speed and the forward feeding speed of the saw blade according to the fed back resistance and vibration data, so that the adjustment is more real-time, accurate and rapid.

(3) Monitoring the vibration condition of a saw blade rotating shaft, and when the vibration amplitude is larger than a set value, reducing the rotation angular speed of the saw blade until the vibration amplitude is smaller than or equal to a set range; the vibration amplitude of the saw blade is monitored, vibration data are fed back to the controller to adjust the rotating speed, so that the early warning can be effectively realized, the saw blade is prevented from generating strong vibration during working to cause accidents, the saw blade is damaged, and even pedestrians are injured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram of a preferred cutting machine control system according to the present invention;

FIG. 2 is a front view of the cutting machine of the present invention;

FIG. 3 is a right side view of the cutting machine of the present invention;

FIG. 4 is a first top view of the cutting machine of the present invention;

FIG. 5 is a second top view of the cutting machine of the present invention;

FIG. 6 is a third top view of the cutting machine of the present invention;

FIG. 7 is a fourth top view of the cutting machine of the present invention;

FIG. 8 is a schematic view of a preferred mounting sleeve of the present invention;

FIG. 9 is a schematic view of a preferred stationary cylinder of the present invention;

FIG. 10 is a schematic view of a preferred rotating shaft limiting cylinder of the present invention;

FIG. 11 is a second schematic view of a preferred rotating shaft limiting cylinder of the present invention;

FIG. 12 is a first view of the preferred support rod assembly of the present invention;

FIG. 13 is a second schematic view of the preferred support rod assembly of the present invention;

FIG. 14 is a schematic view of a preferred rotating shaft sleeve assembly of the present invention.

In the figure: 1. a left saw blade; 11. a right saw blade; 2. a left lifting slide rail; 21. a left slide plate;

22. a right slide plate; 3. a left control body; 31. a left variable speed motor; 311. a left input gear; 32. a left drive shaft; 321. a first left drive gear; 322. a second left drive gear;

33. a left saw blade rotating shaft; 333. positioning blocks; 331. a left output gear;

332. rotating the limiting block; 34. a rotating shaft limiting cylinder; 341. moving the limiting groove;

342. an annular limiting groove; 343. a connecting ring body; 344. a connecting ring connecting portion;

35. fixing the air cylinder; 351. a fixing pin; 36. fixing the mounting sleeve; 37. a rotating shaft limiting cylinder; 38. a right saw blade rotating shaft; 39. a right control body; 391. a rotating shaft positioning cylinder;

392. a rotating shaft positioning sleeve; 393. the rotating shaft positioning buffer assembly; 4. a left feed motor;

41. a left speed change mechanism; 42. a left shaft lever; 43. a left rail wheel; 44. a left chain;

5. a left upright post; 51. a left upright bottom plate; 52. a left upright column top plate; 53. a column slide block;

54. a column slide rail; 55. a frame fixing cylinder; 551. a frame fixing slide block;

56. a rack fixing chute; 57. a right upright post; 58. a right column top plate; 6. a left track;

61. a right track; 7. a left horizontal cylinder; 71. a right horizontal cylinder; 8. a controller;

9. a support rod main body; 91. a first stopper; 92. a second stopper; 93. an elastic fixed seat;

94. an elastic fixing rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1-3, a control system of a double-blade four-track disc cutting machine includes a track, a left saw blade 1, a right saw blade 11, a controller 8, a left feeding device and a right feeding device for controlling the saw blades to feed forward along the track, a left lifting device and a right lifting device for controlling the saw blades to move up and down, a left variable speed motor 31 and a right variable speed motor for controlling the saw blades to rotate, and an output end of the controller 8 is connected with input ends of the left feeding device, the right feeding device, the left lifting device, the right lifting device, the left variable speed motor 31 and the right variable speed motor.

The traditional cutting machine cuts stones at a set operation speed in the process of cutting the quarried stones, the resistance is suddenly increased when the harder stones at a certain position are cut, the rotation speed of a saw blade and the feeding speed of the saw blade forwards cannot be adjusted timely, and then the saw blade is broken or even burnt, even violent vibration occurs, so that the saw blade is broken and scattered, hurts pedestrians and brings serious potential safety hazards; through 8 control feeding devices of controller, elevating gear and variable speed motor, thereby control saw bit rotation speed and the downward speed of feeding forward of saw bit, when the building stones to different hardness cut, can adjust the rotation speed and the operation speed forward downwards of saw bit according to the change of building stones, and then make the saw bit when the cutting, can make the saw bit be difficult to collapse, guarantee the normal use of saw bit, be difficult to produce the potential safety hazard, and can keep the cutting speed of saw bit in reasonable within range, can not influence work efficiency.

As shown in fig. 4-7 and 10-11, as a preferred embodiment, the left variable speed motor 31 controls the left saw blade 1 to rotate through the left saw blade rotating shaft, the right variable speed motor controls the right saw blade 11 to rotate through the right saw blade rotating shaft, the left saw blade rotating shaft and the right saw blade rotating shaft are provided with a resistance sensor for monitoring the resistance of the left saw blade 1 and the right saw blade 11 and a vibration sensor for monitoring the vibration of the rotating shafts, and the output ends of the resistance sensor and the vibration sensor are connected with the input end of the controller 8.

As a preferred embodiment, a display screen for displaying cutting parameters and an input port for setting the cutting parameters and the cutting mode are arranged on the cutting machine.

As a preferred embodiment, the device also comprises a left horizontal cylinder 7 and a right horizontal cylinder 71 for controlling the left and right movement of the left and right saw

blades

1, 11, wherein the input ends of the left horizontal cylinder 7 and the right horizontal cylinder 71 are connected with the output end of the controller 8.

As a preferred embodiment, the saw blade fixing device further comprises a left control main body 3 for installing the left saw blade 1 and a driving structure thereof, a right control main body for installing the right saw blade 11 and a driving structure thereof, and a fixing cylinder for fixing the left control main body 3 and the right control main body, wherein the input end of the fixing cylinder is connected with the output end of the controller 8.

As a preferred embodiment, the saw blade positioning device further comprises a rotation axis limiting cylinder for limiting the rotation direction of the left saw blade rotation axis or the right saw blade rotation axis, and a rotation axis positioning cylinder 391 for positioning the left saw blade rotation axis and the right saw blade rotation axis, wherein an input end of the rotation axis limiting cylinder and an input end of the rotation axis positioning cylinder 391 are connected with an output end of the controller 8.

As a preferred embodiment, the track comprises a left track 6 and a right track 61 which are composed of four parallel strip-shaped guide rails, and further comprises a left frame and a right frame, the left frame and the right frame are respectively installed on the left track 6 and the right track 61, the left control main body 3, the left lifting device, the left speed change motor 31 and the left horizontal cylinder 7 are installed on the left frame, and the right control main body, the right lifting device, the right speed change motor and the right horizontal cylinder 71 are installed on the right frame; and the left frame and the right frame are provided with frame fixing components for fixing the left frame and the right frame.

As a preferred embodiment, the frame fixing assembly includes a frame fixing cylinder 55, a frame fixing slide 551 and a frame fixing slide groove 56, the frame fixing cylinder 55 is fixedly mounted on the left frame or the right frame, each frame fixing cylinder 55 is provided with a frame fixing slide 551, each frame fixing slide 551 is correspondingly provided with a frame fixing slide groove 56 to match with the frame fixing slide 551, and the frame fixing slide groove 56 and the frame fixing slide 551 are respectively mounted on the right frame and the right frame.

In a preferred embodiment, an infrared emitter for aligning the frame fixing slide 551 is installed in the frame fixing slide 56, and an infrared receiving plate corresponding to the infrared emitter is installed on the frame fixing slide 551 on the side close to the frame fixing slide 56.

In a preferred embodiment, the input end of the frame fixing cylinder 55, the input end of the infrared emitter and the input end of the infrared receiving plate are connected with the output end of the controller 8.

A control method of a double-knife four-track disc cutting machine control system comprises the following control steps:

step one, starting a double-cutter disc cutting machine, and controlling a left horizontal cylinder 7 and a right horizontal cylinder 71 to adjust a circular saw blade to a specified transverse position;

As a preferred embodiment, in the first cutting mode, the control frame fixing cylinder 55 fixes the two frames, the control body fixing assembly fixes the two control bodies, and the rotation limiting block is matched with the movement limiting groove to fix the two saw blade rotating shafts along the rotation direction.

As a preferred embodiment, in the second cutting mode, the control frame fixing cylinder 55 fixes the two vertical posts, the control body fixing assembly fixes the two control bodies, and the rotation limiting blocks are matched with the annular limiting grooves to fix the two saw blade rotating shafts along the axial direction.

In a preferred embodiment, in the third cutting mode, the control frame fixing cylinder 55 fixes the two vertical posts, the control body fixing assembly separates the two control bodies, and the rotation shaft limiting cylinder 34 is in the initial position.

In a preferred embodiment, in the fourth cutting mode, the control frame fixing cylinder 55 separates the two columns, the control body fixing assembly separates the two control bodies, and the rotation shaft limiting cylinder 34 is in the initial position.

As a preferred embodiment, the step two enters a downward feeding mode, and cutting is started until the cutting is carried out to a specified depth; and entering a forward feeding mode, and continuing to cut until the cutting reaches a specified distance.

As a preferred embodiment, in the downward feed mode, the downward feed speed v1 satisfies the following relationship:

As a preferred embodiment, the first threshold coefficient of friction k11 satisfies: 0.05< k11 < 0.20, and a second threshold coefficient of friction k12 satisfies: 0.30< k12 is less than or equal to 0.50.

In the downward feed mode, the saw blade rotational angular velocity v2 satisfies the following relationship:

As a preferred embodiment, the third friction threshold coefficient k21 satisfies: 0.05< k21 ≦ 0.20, and a fourth threshold coefficient of friction k22 satisfies: 0.30< k22 is less than or equal to 0.50.

As a preferred embodiment, the downward feed standard frictional resistance f01 satisfies the following relationship:

In a preferred embodiment, in the second step, the vibration condition of the rotating shaft of the saw blade is monitored, and when the vibration amplitude is larger than the set value, the rotation angular speed of the saw blade is reduced until the vibration amplitude is smaller than or equal to the set range.

In a preferred embodiment, the set value of the vibration amplitude is 8 to 15 μm.

The following further describes the beneficial effects of the present embodiment by means of specific examples:

as shown in fig. 1 to 14, in this embodiment, the cutting machine is a double-blade disc cutting machine, and includes a rail, a left saw blade 1 and a right saw blade 11 disposed at two sides of the rail, a left feeding device for controlling the left saw blade 1 to feed forward along the rail, a right feeding device for controlling the right saw blade 11 to feed forward, a left lifting device for controlling the left saw blade 1 to move up and down, a right lifting device for controlling the right saw blade 11 to move up and down, a left rotation control assembly for controlling the left saw blade 1 to rotate, and a right rotation control assembly for controlling the right saw blade 11 to rotate, wherein an output end of a controller 8 is connected to input ends of the left feeding device, the right feeding device, the left lifting device, the right lifting device, the left rotation control assembly, and the right rotation control assembly.

The left rotation control assembly comprises a left control main body 3, a left speed change motor 31 and a left saw blade rotating shaft 33, the left speed change motor 31 is fixedly arranged on the left control main body 3, the left saw blade rotating shaft 33 is arranged on the side wall of the left control main body 3, the output end of the left speed change motor 31 controls the left saw blade rotating shaft 33 to rotate, and the center of the left saw blade 1 is fixedly arranged on the left saw blade rotating shaft 33; the right rotation control assembly comprises a right control main body 39, a right variable speed motor and a right saw blade rotating shaft 38, the right variable speed motor is fixedly installed on the right control main body 39, the right saw blade rotating shaft 38 is installed on the side wall of the right control main body, the right variable speed motor output end controls the right saw blade rotating shaft 38 to rotate, and the center of the right saw blade 11 is fixedly installed on the right saw blade rotating shaft 38.

A left input gear 311 is arranged on an output shaft of the left speed change motor 31, a left output gear 331 is arranged on the left saw blade rotating shaft 33, and the left input gear 311 drives the left output gear 331 to rotate; the right input gear is mounted on the output shaft of the right variable speed motor, the right output gear is mounted on the right saw blade rotating shaft 38, and the right input gear drives the right output gear to rotate.

The left rotation control assembly further comprises a left transmission shaft 32, the left transmission shaft 32 is installed on the left control main body 3, a first left transmission gear 321 and a second left transmission gear 322 are installed on the left transmission shaft 32, the first left transmission gear 321 is meshed with the left input gear 311, and the second left transmission gear 322 is meshed with the left output gear 331; the right rotation control assembly further comprises a right transmission shaft, the right transmission shaft is mounted on the right control main body 39, a first right transmission gear and a second right transmission gear are mounted on the right transmission shaft, the first right transmission gear is meshed with the right input gear, and the second right transmission gear is meshed with the right output gear.

Left side variable speed motor 31 is rotatory through left saw bit rotation axis 33 control left saw bit 1, right side variable speed motor passes through right saw bit rotation axis 38 control right saw bit 11 and rotates, install the resistance sensor who is used for monitoring left saw bit 1 and right saw bit 11 resistance and the vibration sensor who is used for monitoring the rotation axis vibration on left saw bit rotation axis 33 and the right saw bit rotation axis 38, the resistance sensor output, the vibration sensor output links to each other with 8 input of controller.

Specifically, in this embodiment, the track includes left track 6 and right track 61 that four parallel bar guide rails are constituteed, still includes the left frame of installing on left track 6 and the right frame of installing on right track 61, and left frame includes left stand 5, and right frame includes right stand 57, and left rotation control assembly passes through left stand 5 to be installed on left track 6, and right rotation control assembly passes through right stand 57 to be installed on right track 61. The left lifting device comprises a left lifting slide rail 2, the left lifting slide rail 2 is arranged on the left upright post 5 along the vertical direction, the output end of the left lifting device is provided with a left sliding plate 21, the left sliding plate 21 is positioned on the left lifting slide rail 2 and can slide along the length direction of the left lifting slide rail 2, and the left rotation control assembly is arranged on the left sliding plate 21; the right lifting device comprises a right lifting slide rail, the right lifting slide rail is installed on the right upright post 57 along the vertical direction, the right sliding plate 22 is installed at the output end of the right lifting device, the right sliding plate 22 is located on the right lifting slide rail and can slide along the length direction of the right lifting slide rail, and the right rotation control assembly is installed on the right sliding plate 22.

The lifting device may use one of a lead screw or an oil cylinder as a driving mechanism, which is prior art and will not be described in detail.

A left horizontal sliding rail (not shown) is arranged on one side of the left sliding plate 21, which is far away from the left upright post 5, a left horizontal sliding block (not shown) is fixedly arranged at the position, corresponding to the left horizontal sliding rail, of the left rotation control assembly, and the left horizontal sliding block is sleeved inside the left horizontal sliding rail; the right sliding plate 22 is provided with a right horizontal sliding rail on the side away from the right upright post 57, a right horizontal sliding block is fixedly arranged at the corresponding position of the right rotary control assembly and the right horizontal sliding rail, and the right horizontal sliding block is sleeved inside the right horizontal sliding rail.

Still install on the slide and be used for the fixed subassembly of control body with left and right control body 39, the fixed subassembly of control body includes fixed cylinder 35, fixed pin 351 and fixed mounting cover 36, on the slide of more than one fixed cylinder 35 fixed mounting on one of them stand, all install a fixed pin 351 on every fixed cylinder 35, correspond the position department with every fixed pin 351 on the slide on another stand and all be provided with a fixed mounting cover 36. The input end of the fixed air cylinder 35 is connected with the output end of the controller 8. The two control main bodies can be synchronously lifted by arranging the control main body fixing assembly, synchronous lifting can be realized by only starting one lifting device in the operation process, and when the two lifting devices are started, the stability of the control main body in the motion process can be ensured, and the conditions of shaking and the like are not easy to occur.

The left sliding plate 21 is provided with a left horizontal cylinder 7, the telescopic direction of the left horizontal cylinder 7 is parallel to the length direction of the left horizontal sliding rail, and the left rotation control assembly is fixedly arranged at the output end of the left horizontal cylinder 7; the right sliding plate 22 is provided with a right horizontal cylinder 71, the telescopic direction of the right horizontal cylinder 71 is parallel to the length direction of the right horizontal sliding rail, and the right rotary control component is fixedly arranged at the output end of the right horizontal cylinder 71.

The output end of the controller 8 is connected with the input ends of the left horizontal cylinder 7 and the right horizontal cylinder 71.

In this embodiment, the bottom of the control main body is further provided with a rotating shaft limiting assembly for limiting two saw blade rotating shafts.

The rotating shaft limiting assembly comprises a rotating shaft limiting cylinder 34 and a rotating shaft limiting cylinder 37, the rotating shaft limiting cylinder 37 is fixedly arranged at the bottom of the control main body, and the rotating shaft limiting cylinder 34 is arranged at the movable end of the rotating shaft limiting cylinder 37 and is sleeved on the outer circumference of one saw blade rotating shaft; the rotation shaft limiting cylinder 34 can move along the axial direction of the rotation shaft of the saw blade by the driving of the movable end of the rotation shaft limiting cylinder 37. The input end of the rotating shaft limiting cylinder 37 is connected with the output end of the controller 8.

The connecting ring assembly is installed at one end of the rotation shaft limiting cylinder 34 and comprises a connecting ring body 343 and a connecting ring connecting part 344 installed below the connecting ring body 343, the connecting ring connecting part 344 is fixedly installed at the movable end of the rotation shaft limiting cylinder 37, the connecting ring body 343 is installed at the end part of the rotation shaft limiting cylinder 34, and the connecting ring body 343 is coaxial with the rotation shaft limiting cylinder 34 and can rotate along the central axis thereof between the rotation shaft limiting cylinder 34 and the rotation shaft of the saw blade.

An annular groove is formed on the outer circumference of the rotation shaft limiting cylinder 34 at a position corresponding to the connecting ring body 343, and the connecting ring body 343 is sleeved on the annular groove (not shown).

One end of each saw blade rotating shaft, which is far away from the corresponding saw blade, is provided with a rotating limiting block 332 for limiting the rotating direction of the saw blade rotating shaft, and a movable limiting groove 341 for enabling the rotating limiting block 332 to move left and right and an annular limiting groove 342 for enabling the rotating limiting block 332 to rotate are formed inside the rotating shaft limiting cylinder 34.

The movable limiting groove 341 is a long groove parallel to the axis of the saw blade rotation shaft, and the plane of the annular limiting groove 342 is perpendicular to the movable limiting groove 341.

When the rotation-axis limiting cylinder 34 is at the initial position, the rotation limiting block 332 is located in the annular limiting groove 342.

The number of the annular limiting grooves 342 is two, a set of rotating limiting blocks 332 are arranged on the two saw blade rotating shafts, and the distance between the two annular limiting grooves 342 is equal to the distance between the rotating limiting blocks 332 on the two saw blade rotating shafts.

The number of the annular limiting grooves 342 is three, a set of rotary limiting blocks 332 are arranged on the two saw blade rotating shafts, and except the annular limiting grooves 342 occupied by the rotary limiting blocks 332 when the rotating shaft limiting cylinder 34 is at the initial position, the distance between the other two annular limiting grooves 342 is equal to the distance between the rotary limiting blocks 332 on the two saw blade rotating shafts.

More than two groups of rotation limiting blocks 332 are arranged on the two saw blade rotating shafts, and when the two saw blade rotating shafts are positioned at the first limiting connecting position, the rotation limiting blocks 332 are positioned in the annular limiting grooves 342; when the two blade rotation shafts are in the second limit connection position, the rotation limit blocks 332 are both in the movement limit grooves 341.

In this embodiment, a rotating shaft positioning sleeve assembly for positioning the rotating shaft of the saw blade is mounted at the bottom of at least one control main body.

The rotating shaft positioning sleeve assembly comprises a rotating shaft positioning cylinder 391 and a rotating shaft positioning sleeve 392, the rotating shaft positioning cylinder 391 is installed on the sliding plate 21, the rotating shaft positioning sleeve 392 is fixedly installed at the movable end of the rotating shaft positioning cylinder 391, a positioning groove for positioning the circular saw blade 1 is formed in the side, close to the saw blade rotating shaft, of the rotating shaft positioning sleeve 392, and a positioning block 333 matched with the positioning groove is arranged in the position, corresponding to the positioning groove, of the surface length direction of the saw blade rotating shaft.

The input end of the rotating shaft positioning cylinder is connected with the output end of the controller. After the saw blade rotates synchronously or asynchronously, when the operation mode needs to be changed, the rotating motion of the saw blade is closed, the speed of the saw blade is gradually reduced, at the moment, the cylinder is started, the rotating shaft positioning sleeve arranged on the movable end of the cylinder approaches to the rotating shaft along with the motion of the movable end of the cylinder, the setting distance between the rotating shaft positioning sleeve and the rotating shaft positioning sleeve is smaller than the height of the positioning block on the rotating shaft of the saw blade, when the positioning block rotates to one side of the rotating shaft positioning sleeve, the rotating shaft positioning sleeve and the positioning block will rub, the rotating speed of the saw blade is gradually reduced, when the rotating speed of the saw blade is enough to rotate for one circle, but when the energy required by the rotation is less than the energy required by the friction force between the rotating shaft positioning sleeve and the positioning block, the saw blade stops, and the positioning device is accommodated in the rotating shaft positioning groove of the rotating shaft positioning sleeve to realize the positioning of the position of the rotating shaft and further realize the positioning of the rotating shaft limiting block.

Specifically, the positioning groove is an arc-shaped groove, the distance between the notch at one end of the arc-shaped groove and the rotating shaft is greater than the height of the positioning block 333, and the distance between the notch at the other end of the arc-shaped groove and the rotating shaft is less than the height of the positioning block 333; the rotation direction of the positioning block 333 is from one end of the positioning groove with larger distance from the saw blade rotating shaft to the other end; the lower end of the positioning block 333 is in contact with the positioning groove, and the end is an arc-shaped surface, and the tangent point of the arc-shaped surface and the positioning groove is located inside the positioning groove.

The rotating shaft positioning sleeve 392 is slidably mounted on the movable end of the rotating shaft positioning cylinder 391 in the longitudinal direction of the movable end of the rotating shaft positioning cylinder 391.

Specifically, the rotating shaft positioning cylinder 391 is further provided with a rotating shaft positioning buffer assembly 393 for buffering the rotating shaft positioning sleeve 392. Rotation axis location buffer component 393 includes buffer spring, cushion socket, buffer beam, and it has the loop configuration groove of installation buffer beam to open on the rotation axis position sleeve 392, and the buffer beam is installed on the cushion socket, and the buffer spring cover is established on the buffer beam, and the buffer beam is installed inside the loop configuration groove, and buffer spring one end is connected with the cushion socket, and one end is installed peripherally at the loop configuration groove. The input end of the rotating shaft positioning cylinder 391 is connected with the output end of the controller 8.

Two left stand 5 both ends are fixed through left stand bottom plate 51 and left stand roof 52, and two right stand 57 both ends are fixed through right stand 57 bottom plate and right stand roof 58, all install between left stand bottom plate 51 and the right stand 57 bottom plate, between left stand roof 52 and the right stand roof 58 to be used for fixing left stand 5 and right stand 57 and carry out the frame fixed subassembly that fixes to left frame, right frame promptly. The arrangement of the rack fixing component can ensure the overall stability of the cutting machine in the synchronous forward feeding process.

The rack fixing assembly comprises a rack fixing air cylinder 55, rack fixing sliding blocks 551 and rack fixing sliding grooves 56, the rack fixing air cylinder 55 is fixedly installed on the left rack bottom plate 51 or the left rack top plate 52, each rack fixing air cylinder 55 is provided with one rack fixing sliding block 551, each rack fixing sliding block 551 is correspondingly provided with one rack fixing sliding groove 56 to be matched with the rack fixing sliding groove, and the rack fixing sliding grooves 56 are installed on the right rack 57 bottom plate or the right rack top plate 58.

The input end of the frame fixing cylinder 5 is connected with the output end of the controller 8.

An infrared emitter (not shown) for calibrating the frame fixing slide 551 is installed in the frame fixing slide 56, and an infrared receiving plate (not shown) corresponding to the infrared emitter is installed on one side of the frame fixing slide 551 close to the frame fixing slide 56.

The left upright post top plate 52 and the right upright post top plate 58 and the left upright post bottom plate 51 and the right upright post 57 bottom plate are connected through upright post slide rails 54 and upright post slide blocks 53.

The left upright post top plate 52 and the left upright post bottom plate 51 are provided with upright post slide rails 54, and the right upright post top plate 58 and the right upright post 57 are provided with upright post slide blocks 53 which are sleeved in the corresponding positions in the upright post slide rails 54.

The left feeding device is arranged on the left upright bottom plate 51, and the left feeding device is arranged at two ends of the left upright bottom plate 51; the left feeding device comprises a left shaft lever 42, a left feeding motor 4 and a left track wheel 43; a left mounting part for mounting the feeding device is formed at two ends of the left column bottom plate 51, a left shaft hole for mounting the left shaft rod 42 is formed in the left mounting part, the left shaft rod 42 is mounted on the left shaft hole along the width direction of the track, and the left track wheels 43 are mounted at two ends of the left shaft rod 42; the left feeding motor 4 drives a left chain wheel on the left speed changing mechanism 41 through a left chain 44, the left speed changing mechanism 41 further drives a left chain wheel on the left shaft lever 42 through the left chain 44, and finally the left speed changing mechanism 41 drives the left shaft lever 42 to rotate in a chain and chain wheel mode; the right feeding device is arranged on the bottom plate of the right upright post 57, and the right feeding device is arranged at two ends of the bottom plate of the right upright post 57; the right feeding device comprises a right shaft lever, a right feeding motor and a right rail 61 wheel; a right mounting part for mounting a feeding device is formed at two ends of the bottom plate of the right upright post 57, a right shaft hole for mounting a right shaft rod is formed in the right mounting part, the right shaft rod is mounted on the right shaft hole along the width direction of the rail, and wheels 61 of the right rail are mounted at two ends of the right shaft rod; still include right speed change mechanism, all be provided with the right sprocket on right speed change mechanism and the right axostylus axostyle, right feeding motor drives the right sprocket on the right speed change mechanism through the right chain and then right speed change mechanism drives the right sprocket on the axostylus axostyle through the right chain, finally adopts the chain sprocket mode to drive the right axostylus axostyle rotation.

Specifically, in this embodiment, a disc fixing assembly for fixing the non-center position of the saw blade is further installed on the saw blade rotating shaft.

The disc fixing assembly comprises a disc frame body and more than 3 supporting rod assemblies which are uniformly distributed on the surface of the disc frame body along the circumferential direction, the center of the disc frame body is fixedly installed on the saw blade rotating shaft, and the axis of each supporting rod assembly is parallel to the saw blade rotating shaft.

The distance from the central axis of each support rod assembly to the central axis of the blade rotational axis is equal.

The radius R0 of the saw blade is more than or equal to 2.5m, and the distance R1 between the central axis of the support rod assembly and the central axis of the rotating shaft of the saw blade is R0/(10-14).

The supporting rod assembly comprises a supporting rod main body 9 and a supporting rod fixing assembly used for fixing the saw blade at the end part of the supporting rod main body 9, external threads are formed at one end, fixed by the supporting rod main body 9 and the saw blade, of the supporting rod main body, and a supporting rod mounting hole for the supporting rod main body 9 to pass through is formed in the position, corresponding to the supporting rod main body 9, of the saw blade.

The supporting rod fixing assembly comprises a first stop block 91 and a second stop block 92 which are used for fixing two sides of the saw blade, the first stop block 91 and the second stop block 92 are tightly attached to the side faces of the saw blade, and the centers of the first stop block 91 and the second stop block 92 are in threaded connection with the supporting rod main body 9.

The first block 91 is provided with an elastic fixing component for applying pressure to the first block on the surface far away from the saw blade.

When the saw blade vibrates violently, the first stop block has transverse acting force, at the moment, the first stop block is damaged finally due to the fact that the first stop block tends to move transversely due to the violent vibration, and the saw blade cannot be locked; if the saw bit takes place violent vibration, lead to first dog to destroy, when unable fixing the saw bit, the fixed subassembly of elasticity that sets up can also play the effect of interim fixed saw bit under the effect of spring, makes the saw bit can not break away from the rotation axis because of the vibration to the effort that produces when vibrating carries out certain absorption, reduces the harm to saw bit and rotation axis, better protection operation safety, reduction loss of property.

The elastic fixing component comprises an elastic fixing seat 93, elastic fixing rods 94 uniformly distributed in the elastic fixing seat 93 along the circumferential direction and pressure springs sleeved on the elastic fixing rods 94; the elastic fixing seat 93 is fixedly sleeved at the end of the supporting rod main body 9 and abuts against the first stop block 91 at a side close to the first stop block 91. There is certain clearance or the loose fender of elasticity fixing base in first dog one side between elasticity fixing base and the first dog to further support firmly on first dog through pressure spring wherein.

A fixing rod sliding groove is formed in the first stopper 91 at a position corresponding to the elastic fixing rod 94, and the elastic fixing rod 94 is sleeved in the fixing rod sliding groove and can axially slide along the elastic fixing rod 94.

Specifically, the fixed rod chute is a chute with an annular radial section.

One end of the pressure spring is fixedly mounted on the elastic fixing seat 93, and the other end of the pressure spring is fixedly mounted on the first stop block 91 at the peripheral position of the fixed rod chute.

The pressure spring is a tower spring, and the larger radius end of the pressure spring is fixedly arranged on the first stop block 91 at the peripheral position of the chute of the fixed rod.

The disc fixing assembly is mainly used for enhancing the anti-vibration capability of the saw blade, enhancing the cutting stability of the disc and preventing the saw blade from being damaged or accidents and the like due to abnormal vibration.

The control method of the control system of the double-cutter four-track disc cutting machine in the embodiment comprises the following control steps:

When the cutting machine is in the first cutting mode, the control frame fixing cylinder 55 fixes the two vertical columns, the control main body fixing assembly fixes the two control main bodies, and the rotation limiting block 332 is matched with the movement limiting groove 341 to fix the two saw blade rotating shafts along the rotating direction.

When the saw blade cutting machine is in a first cutting mode, the control frame fixing air cylinder 55 fixes the two vertical columns, the control main body fixing assembly fixes the two control main bodies, then the rotating shaft limiting cylinder 34 can move along the axis direction of the other saw blade rotating shaft under the driving of the movable end of the rotating shaft positioning air cylinder 37, the left saw blade rotating shaft and the right saw blade rotating shaft are sleeved in the same rotating shaft limiting cylinder 34, the rotating limiting blocks 332 on the left saw blade rotating shaft and the right saw blade rotating shaft are matched with the moving limiting grooves 341, then one of the variable speed motors is started, and the two saw blades can rotate synchronously.

When the cutting machine is in the second cutting mode, the control frame fixing cylinder 55 fixes the two vertical columns, the control main body fixing assembly fixes the two control main bodies, and the rotation limiting block 332 is matched with the annular limiting groove 342 to fix the two saw blade rotating shafts along the axis direction.

When the saw blade cutting machine is in a second cutting mode, the control frame fixing cylinder 55 fixes the two vertical columns, the control main body fixing assembly fixes the two control main bodies, the rotating shaft limiting cylinder 34 can move along the axis direction of the other saw blade rotating shaft under the driving of the movable end of the rotating shaft positioning cylinder 37, the left saw blade rotating shaft and the right saw blade rotating shaft are sleeved in the same rotating shaft limiting cylinder 34, the rotating limiting blocks 332 on the left saw blade rotating shaft and the right saw blade rotating shaft are matched with the annular limiting groove 342, and then the left variable speed motor and the right variable speed motor are started, so that the two saw blades can rotate asynchronously.

In the third cutting mode, the control frame fixing cylinder 55 fixes the two columns, the control body fixing component separates the two control bodies, and the rotation shaft limiting cylinder 34 is at the initial position.

In the fourth cutting mode, the control frame fixing air cylinder 55 separates the two vertical columns, the control main body fixing component separates the two control main bodies, and the rotating shaft limiting cylinder 34 is at the initial position.

The saw bit is at rotatory in-process, its rotational speed may have little disparity, make it take place asynchronous rotation, therefore the spacing section of thick bamboo of rotation that sets up, make it be in respectively under different modes and remove spacing groove 341 or annular spacing groove 342, when the saw bit rotation axis of left and right both ends need synchronous rotation, the rotation axis stopper on the two all is in removing inside the spacing groove 341, finally make it have same initial condition, and also difficult emergence asynchronous rotation in the operation in the future, when the asynchronous rotation of left and right saw bit rotation axis, it can hold in the annular groove spacing groove, take place asynchronous rotation.

The cutting machine in this embodiment can have different operation modes, the different production demands of adaptation that can be better, uses more diversified.

The control method of the single saw blade control system in the cutting machine in the embodiment comprises the following control steps:

starting a cutting machine, entering a downward feeding mode, and starting cutting until the cutting machine cuts to a specified depth;

step two, entering a forward feeding mode, and continuing cutting until the cutting distance is reached;

and step three, keeping the saw blade to continuously rotate, and lifting the saw blade of the cutting machine to finish one-time cutting operation.

In the downward feed mode, the downward feed speed v1 satisfies the following relationship:

The first friction threshold coefficient k11 satisfies: 0.05< k11 < 0.20, and a second threshold coefficient of friction k12 satisfies: 0.30< k12 is less than or equal to 0.50.

In the downward feed mode, the blade rotational angular velocity v2 satisfies the following relationship:

The third friction threshold coefficient k21 satisfies: 0.05< k21 ≦ 0.20, and a fourth threshold coefficient of friction k22 satisfies: 0.30< k22 is less than or equal to 0.50.

The downward feed standard frictional resistance f01 satisfies the following relationship:

In the forward feed mode, the forward feed speed v3 satisfies the following relationship:

where f02 represents the forward feed standard frictional resistance, v01 represents the forward feed set speed, k31 represents the fifth threshold coefficient of friction, and k32 is the sixth threshold coefficient of friction.

The fifth friction threshold coefficient k31 satisfies: 0.05< k31 ≦ 0.20, and a sixth threshold coefficient of friction k32 satisfies: 0.30< k32 is less than or equal to 0.50.

In the forward feed mode, the blade rotational angular velocity v4 satisfies the following relationship:

where f02 represents the standard frictional resistance to forward feed, v02 represents the set angular speed of forward feed blade rotation, k41 represents the seventh threshold coefficient of friction, and k22 is the eighth threshold coefficient of friction.

The seventh friction threshold coefficient k41 satisfies: 0.05< k41 ≦ 0.20, and an eighth threshold coefficient of friction k42 satisfying: 0.30< k42 is less than or equal to 0.50.

The forward-feed standard frictional resistance f02 satisfies the following relationship:

where R represents the radius of the blade, L0 represents the blade cut depth setting, k01 represents the blade flank friction drag coefficient, k02 represents the kerf friction drag coefficient, v03 represents the forward feed set speed, and v04 represents the forward feed blade rotational set angular speed.

In the control method of the single saw blade control system, in the first step and the second step, the vibration condition of the saw blade rotating shaft is monitored, and when the vibration amplitude is larger than a set interval, the rotating angular speed of the saw blade is reduced or the feeding speed is reduced until the vibration amplitude is smaller than or equal to a set range.

The set interval of the vibration amplitude is any interval of 6-18 micrometers, and is preferably 8-15 micrometers. More preferably 10 to 12 microns.

Specifically, in the present embodiment, two vibration amplitude setting intervals are provided, and each setting interval is any one interval of 6 to 18 micrometers.

When the vibration amplitude is larger than the upper limit of the first set interval, the specific response steps are as follows:

step one, reducing the feeding speed until the vibration amplitude is reduced to be lower than the lower limit of a first set interval;

if the vibration amplitude is not reduced below the lower limit of the first set interval after the feeding speed is reduced to half of the initial speed, simultaneously reducing the feeding speed and the rotation angular speed until the vibration amplitude is reduced below the lower limit of the first set interval;

after the vibration amplitude is reduced to be lower than the lower limit of the first set interval, keeping the feeding speed and the rotation angular speed unchanged, and when the vibration amplitude is reduced to be lower than the lower limit of the second set interval, improving the rotation angular speed to be the rotation speed without being influenced by the vibration amplitude; and then gradually increasing the feeding speed to a feeding speed which is not influenced by the amplitude.

In the third step, when the rotational angular velocity or the feed velocity is increased and the vibration amplitude is equal to or greater than the upper limit of the second set interval, the rotational angular velocity and the feed velocity are kept unchanged until the vibration amplitude is reduced to or less than the lower limit of the second set interval, and then the rotational angular velocity or the feed velocity is increased.

When the vibration amplitude is larger than the first set interval, the change rule of the feeding speed meets the following formula:

where v0 represents the feed speed without being affected by the amplitude, n is an integer greater than or equal to 1, preferably 3, formula (1) triggers when the amplitude of vibration is greater than the upper limit of the first set interval and terminates when the amplitude of vibration reaches the lower limit of the first set interval; equation (2) is triggered when the rotational speed has increased to a rotational angular speed that is not affected by an amplitude that is less than a second set interval lower limit and the feed speed is less than v0/2, and is terminated when v0' is v0/2 or when the amplitude reaches above the second set interval upper limit; equation (3) is triggered when the rotational angular velocity has increased to the rotational angular velocity without being affected by the amplitude, and the amplitude is smaller than the second set interval upper limit and v0' ≧ v0/2, and is terminated when the feed speed reaches v0 or the amplitude reaches or exceeds the second set interval upper limit; where v0 "is the initial feed speed at the time of trigger.

When the vibration amplitude is larger than the first set interval, the change rule of the rotation angular velocity satisfies the following formula:

wherein v2 represents the rotation speed without being affected by the amplitude, n is an integer greater than or equal to 1, preferably 3, formula (4) is triggered when the vibration amplitude has not decreased below the lower limit of the first set interval after the feed speed has decreased to half of its initial speed, and is terminated when the vibration amplitude reaches the lower limit of the first set interval; equation (5) is triggered when the vibration amplitude falls below the second set interval lower limit, and is terminated when the vibration amplitude reaches above the second set interval upper limit or when the rotational angular velocity reaches v 0.

The first set interval of vibration amplitude is 10-18 microns, preferably 10-12 microns; the second set interval of vibration amplitude is 6-10 microns, preferably 6-8 microns.

When the monitored vibration amplitude is not within the set range, the adjustment of the rotation angular speed and the downward forward feeding speed of the saw blade should be preferentially adjusted to be less than or equal to the set range by the adjustment of the vibration condition. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-cutter four-track disc cutting machine control system is characterized by comprising a track, a left saw blade, a right saw blade, a controller, a left feeding device and a right feeding device for controlling the saw blades to feed forwards along the track, a left lifting device and a right lifting device for controlling the saw blades to move up and down, and a left variable speed motor and a right variable speed motor for controlling the saw blades to rotate, wherein the output end of the controller is connected with the input ends of the left feeding device, the right feeding device, the left lifting device, the right lifting device, the left variable speed motor and the right variable speed motor.

2. The control system of claim 1, wherein the left variable speed motor controls the left saw blade to rotate through a left saw blade rotating shaft, the right variable speed motor controls the right saw blade to rotate through a right saw blade rotating shaft, the left saw blade rotating shaft and the right saw blade rotating shaft are provided with a resistance sensor for monitoring the resistance of the left saw blade and the right saw blade and a vibration sensor for monitoring the vibration of the rotating shafts, and the output end of the resistance sensor and the output end of the vibration sensor are connected with the input end of the controller.

3. The control system of claim 2, further comprising a left horizontal cylinder and a right horizontal cylinder for controlling the left and right movement of the left and right saw blades, wherein the input end of the left horizontal cylinder and the input end of the right horizontal cylinder are connected to the output end of the controller.

4. The control system of claim 3, further comprising a left control body for mounting the left saw blade and the driving structure thereof, a right control body for mounting the right saw blade and the driving structure thereof, and a fixing cylinder for fixing the left control body and the right control body, wherein an input end of the fixing cylinder is connected to an output end of the controller.

5. The control system of claim 4, further comprising a rotation axis limiting cylinder for limiting the rotation direction of the left saw blade rotation axis or the right saw blade rotation axis, and a rotation axis positioning cylinder for positioning the left saw blade rotation axis and the right saw blade rotation axis, wherein an input end of the rotation axis limiting cylinder and an input end of the rotation axis positioning cylinder are connected to an output end of the controller.

6. The control system of a double-blade four-track disc cutting machine according to claim 5, wherein the track comprises a left track and a right track composed of four parallel bar-shaped guide rails, and further comprises a left frame and a right frame, the left frame and the right frame are respectively mounted on the left track and the right track, the left control body, the left lifting device, the left variable speed motor and the left horizontal cylinder are mounted on the left frame, and the right control body, the right lifting device, the right variable speed motor and the right horizontal cylinder are mounted on the right frame; the left frame with install the frame fixed subassembly that is used for fixing left frame and right frame in the right frame.

7. The control system of claim 6, wherein the frame fixing assembly comprises a frame fixing cylinder, a frame fixing sliding block and a frame fixing sliding groove, the frame fixing cylinder is fixedly mounted on the left frame or the right frame, one frame fixing sliding block is mounted on each frame fixing cylinder, one frame fixing sliding block is correspondingly arranged on each frame fixing sliding block and matched with the frame fixing sliding groove, and the frame fixing sliding groove and the frame fixing sliding block are respectively mounted on the right frame and the right frame.

8. The control system of claim 7, wherein the input end of the frame fixing cylinder, the input end of the infrared emitter and the input end of the infrared receiving plate are connected to the output end of the controller.

9. The control method of the control system of the double-blade four-track disc cutting machine according to any one of claims 1 to 8, characterized by comprising the following control steps:

10. The control method of the control system of the double-blade four-track disc cutting machine according to claim 9, wherein in the first cutting mode, the control frame fixing cylinder fixes the two frames, the control body fixing assembly fixes the two control bodies, and the rotation limiting block cooperates with the movement limiting groove to fix the two saw blade rotating shafts in the rotation direction.