CN113482610B

CN113482610B - Control system and control method for double-cutter four-track disc cutting machine

Info

Publication number: CN113482610B
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: 2024-07-26
Anticipated expiration: 2041-07-02
Also published as: CN113482610A

Abstract

The invention discloses a control system of a double-cutter four-track disc cutter and a control method thereof, belonging to the technical field of stone machining 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 saw blade to feed forward along the track, a left lifting device and a right lifting device for controlling the saw blade to move up and down, and a left variable-speed motor and a right variable-speed motor for controlling the saw blade 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 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 rotate continuously, and the saw blade is lifted to finish the cutting once. The beneficial effects of the invention are as follows: the rotating speed and the forward feeding speed of the saw blade are controlled, the saw blade is not easy to collapse, the normal use of the saw blade can be ensured, and the working efficiency is not influenced.

Description

Control system and control method for double-cutter four-track disc cutting machine

Technical Field

The invention relates to the technical field of stone machining mechanical equipment, in particular to a control system and a control method of a double-cutter four-rail disc cutter.

Background

The existing mine quarrying machine is commonly used, single saw blades are arranged on a single saw machine at the initial stage, two ends of a main shaft of the single saw machine are respectively provided with a plurality of saw blades, and the quarrying machine is more convenient to quarry stone and gradually improves quarrying efficiency. However, the properties of the rock materials mined by the existing rock quarrying machine are not completely the same in the mining process, the rock materials of a certain part on a mine are possibly higher or lower in hardness than the rock materials of another part, at the moment, the actions of resistance and the like of the rock materials with different hardness are different when the rock materials are cut by the saw blade, the existing rock quarrying machine cannot adjust the rotation speed of the saw blade and the feeding movement in the downward and forward directions in the cutting process, the cutting of the rock materials with different hardness is far insufficient, the conditions of saw blade vibration, collapse and the like are easily generated in the operation, and the operation efficiency is reduced.

For example, the invention patent with publication number CN102022117B discloses a double-spliced adjustable-pitch mine quarrying machine, which comprises a machine base, upright posts and a sawing machine, wherein sliding plates with transverse guide grooves are respectively pivoted on guide rails of the two upright posts, two ends of a gearbox are slidingly 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 gearbox is divided into a gear cavity and a cavity, the gear cavity is of a triaxial structure, the gear cavity is sequentially provided with a motor shaft, an intermediate shaft and an output shaft, the triaxial structure is meshed and transmitted through two groups of gear sets, and the end face of the motor is suspended and fixed on the side face of the gearbox; the sliding plate is pivoted with two gearboxes of independent sawing machines side by side, the two gearboxes are mutually rotated by 180 degrees, a motor hung on the side surface of each gearbox can be inserted into a cavity of the other gearbox, and saw blades on the output shafts of the two gearboxes are positioned on the far side and on the same axis; a baffle plate is fixed at the middle position of the two sliding plates, a driving oil cylinder is respectively arranged between the baffle plate and the two gearboxes, and the position of the saw blade is adjusted by the action of the oil cylinder. The stone quarrying machine cannot adjust the rotation speed of the saw blade and the feeding movement in the downward and forward directions in the cutting process, so that the situations such as saw blade collapse and the like are easily caused, the service life of the saw blade is shortened, the operation efficiency is influenced, and the cost is increased.

Disclosure of Invention

In order to solve the problems that in the prior art, the stone in one part of the mine mined by the stone mining machine is possibly higher or lower in hardness than the stone in the other part, but the existing stone mining machine cannot adjust the rotation speed of the saw blade and the feeding movement in the downward and forward directions in the cutting process, the saw blade is easy to collapse during operation, the operation efficiency is reduced and the like. The invention provides a control system and a control method of a double-cutter four-track disc cutting machine, wherein the control system and the control method can adjust the rotation speed of a saw blade by controlling a lifting device, a feeding device and a variable speed motor of the double-cutter four-track disc cutting machine, so that the saw blade can be subjected to speed adjustment when stone materials with different hardness are cut, the normal use of the saw blade is ensured, the saw blade is not easy to collapse, and the working efficiency is not influenced. The specific technical scheme is as follows:

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

Because the stone is in different positions on the stone picking mountain, the hardness, density and other physical properties of the stone at different positions can be changed to a certain extent, so that the difference exists, the traditional cutting machine cuts at a set working speed in the process of cutting the stone picking, the resistance is suddenly increased when the harder stone at a certain position is cut, the rotating speed and the feeding speed of the saw blade downwards and forwards cannot be adjusted in time, and then the situation of crushing the saw blade and even burning the cutting machine occurs, even severe vibration occurs, so that the saw blade is broken and scattered, and pedestrians are injured, thereby bringing serious potential safety hazards; the feeding device, the lifting device and the variable speed motor are controlled by the controller, so that the rotating speed of the saw blade and the feeding speed of the saw blade downwards and forwards are controlled, when stones with different hardness are cut, the rotating speed of the saw blade and the working speed downwards and forwards can be adjusted according to the change of the stones, and when the saw blade is cut, the saw blade is not easy to collapse, the normal use of the saw blade is ensured, potential safety hazards are not easy to generate, and the cutting speed of the saw blade can be kept in a reasonable range, so that the working efficiency is not influenced.

Preferably, 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, 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 shaft are arranged on the left saw blade rotating shaft and the right saw blade rotating shaft, 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.

Preferably, a display screen for displaying cutting parameters and an input port for setting the cutting parameters and the cutting modes are arranged on the cutting machine.

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

Preferably, the 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 bar-shaped guide rails, and further comprises a left rack and a right rack, wherein the left rack and the right rack are respectively arranged 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 arranged 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 arranged on the right rack; and a frame fixing assembly used for fixing the left frame and the right frame is arranged on the left frame and the right frame.

Preferably, the frame fixing assembly comprises a frame fixing cylinder, frame fixing sliding blocks and frame fixing sliding grooves, wherein the frame fixing cylinder is fixedly installed on the left frame or the right frame, each frame fixing cylinder is provided with one frame fixing sliding block, each frame fixing sliding block is correspondingly provided with one frame fixing sliding groove matched with the corresponding frame fixing sliding groove, and the frame fixing sliding grooves and the frame fixing sliding blocks are respectively installed on the right frame and the right frame.

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

Preferably, the frame fixed cylinder input, the infrared transmitter input and the infrared receiving plate input are connected with the controller output.

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

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

Setting a cutting mode of a double-cutter four-track disc cutter, and starting cutting;

step three, after cutting is completed, keeping the saw blade continuously rotating, and lifting the saw blade of the cutting machine to complete one-time cutting operation;

The cutting mode of the double-cutter four-track disc cutter 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 is that the left saw blade and the right saw blade synchronously lift, synchronously rotate and synchronously advance; the second cutting mode is that the left saw blade and the right saw blade synchronously lift, do not synchronously rotate and synchronously advance; the third cutting mode is that the left saw blade and the right saw blade do not synchronously lift, do not synchronously rotate and synchronously advance; the fourth cutting mode is that the left saw blade and the right saw blade do not synchronously lift, do not synchronously rotate and do not synchronously advance.

Preferably, when in the first cutting mode, the control rack fixing cylinder fixes the two racks, the control main body fixing assembly fixes the two control main bodies, and the rotating limiting block and the moving limiting groove are matched to fix the two saw blade rotating shafts along the rotating direction.

Preferably, in the second cutting mode, the control frame fixing cylinder fixes the two vertical posts, the control main body fixing assembly fixes the two control main bodies, and the rotating limiting block is matched with the annular limiting groove to fix the two saw blade rotating shafts along the axis direction.

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

Preferably, in the fourth cutting mode, the control frame fixing cylinder separates the two vertical posts, the control main body fixing assembly separates the two control main bodies, and the rotation shaft limiting cylinder is in an initial position.

Preferably, in the second step, a downward feeding mode is entered, and cutting is started until the cutting reaches a specified depth; the forward feed mode is entered and cutting is continued until the specified distance is reached.

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

Where f01 denotes a downward feeding standard frictional resistance, v01 denotes a downward feeding set speed, k11 denotes a first frictional threshold coefficient, and k12 denotes a second frictional threshold coefficient.

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

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

Where f01 denotes a downward feeding standard frictional resistance, v02 denotes a downward feeding saw blade rotation setting angular velocity, k21 denotes a third frictional threshold coefficient, and k22 is a fourth frictional threshold coefficient.

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

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

Wherein R represents the radius of the saw blade, L represents the sawing depth of the saw blade downwards, k01 is the coefficient of friction resistance of the side surface of the saw blade, k02 is the coefficient of friction resistance of the saw blade, v01 represents the downwards feeding set speed, and v02 represents the downwards feeding set angular speed of rotation of the saw blade.

Preferably, in the second step, the vibration condition of the rotation shaft of the saw blade is monitored, and when the vibration amplitude is greater than the set value, the rotation angular velocity of the saw blade is reduced until the vibration amplitude is less than or equal to the set range.

Preferably, the set value of the vibration amplitude is 8 to 15 μm.

The beneficial effects are that:

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

(1) Because the stone is in different positions on the stone picking mountain, the hardness, density and other physical properties of the stone at different positions can be changed to a certain extent, so that the difference exists, the traditional cutting machine cuts at a set working speed in the process of cutting the stone picking, the resistance is suddenly increased when the harder stone at a certain position is cut, the rotating speed and the feeding speed of the saw blade downwards and forwards cannot be adjusted in time, and then the situation of crushing the saw blade and even burning the cutting machine occurs, even severe vibration occurs, so that the saw blade is broken and scattered, and pedestrians are injured, thereby bringing serious potential safety hazards; the feeding device, the lifting device and the variable speed motor are controlled by the controller, so that the rotating speed of the saw blade and the feeding speed of the saw blade downwards and forwards are controlled, when stones with different hardness are cut, the rotating speed of the saw blade and the working speed downwards and forwards can be adjusted according to the change of the stones, and when the saw blade is cut, the saw blade is not easy to collapse, the normal use of the saw blade is ensured, potential safety hazards are not easy to generate, and the cutting speed of the saw blade can be kept in a reasonable range, so that the working efficiency is not influenced.

(2) The resistance sensor and the vibration sensor for monitoring the resistance and vibration of the saw blade are arranged on the rotating shaft of the saw blade, then the obtained resistance data and 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 the saw blade rotating shaft, and reducing the rotation angular velocity of the saw blade when the vibration amplitude is larger than a set value 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, and therefore early warning can be effectively achieved, the saw blade is prevented from being damaged due to the fact that the saw blade is subjected to strong vibration during working, 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 needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

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

FIG. 2 is a front view of a preferred cutter of the present invention;

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

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

FIG. 5 is a top view of a second preferred cutter of the present invention;

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

FIG. 7 is a top view of a preferred 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 rotation shaft limiting cartridge of the present invention;

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

FIG. 12 is a schematic view of a preferred support bar assembly of the present invention;

FIG. 13 is a schematic view of a second 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 main body; 31. a left variable speed motor; 311. a left input gear; 32. a left transmission shaft; 321. a first left drive gear; 322. a second left drive gear;

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

332. a rotary limiting block; 34. a rotation shaft limiting cylinder; 341. moving the limit groove;

342. An annular limit groove; 343. a connecting ring body; 344. a connecting ring connecting part;

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

392. a rotating shaft positioning sleeve; 393. a rotating shaft positioning buffer assembly; 4. a left feeding 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 post bottom plate; 52. a left column top plate; 53. a column slider;

54. A column slide rail; 55. the frame is fixed with a cylinder; 551. the frame is provided with a fixed sliding block;

56. A frame fixing chute; 57. a right column; 58. a right column top plate; 6. a left rail;

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

9. A support bar main body; 91. a first stopper; 92. a second stopper; 93. an elastic fixing seat;

94. and an elastic fixing rod.

Detailed Description

For the purpose of making 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 clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as 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, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.

As shown in fig. 1-3, a control system of a double-blade four-track disc cutter comprises 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 blade to feed forward along the track, a left lifting device and a right lifting device for controlling the saw blade to move up and down, a left variable speed motor 31 and a right variable speed motor for controlling the saw blade to rotate, wherein the output end of the controller 8 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 31 and the right variable speed motor.

Because the stone is in different positions on the stone picking mountain, the hardness, density and other physical properties of the stone at different positions can be changed to a certain extent, so that the difference exists, the traditional cutting machine cuts at a set working speed in the process of cutting the stone picking, the resistance is suddenly increased when the harder stone at a certain position is cut, the rotating speed and the feeding speed of the saw blade downwards and forwards cannot be adjusted in time, and then the situation of crushing the saw blade and even burning the cutting machine occurs, even severe vibration occurs, so that the saw blade is broken and scattered, and pedestrians are injured, thereby bringing serious potential safety hazards; the feeding device, the lifting device and the variable speed motor are controlled by the controller 8, so that the rotating speed of the saw blade and the feeding speed of the saw blade downwards and forwards are controlled, when stones with different hardness are cut, the rotating speed of the saw blade and the working speed downwards and forwards can be adjusted according to the change of the stones, and further, when the saw blade is cut, the saw blade is not easy to collapse, the normal use of the saw blade is ensured, potential safety hazards are not easy to generate, and the cutting speed of the saw blade can be kept in a reasonable range, so that the working efficiency is not influenced.

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, and 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 shaft, 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 8.

As a preferred embodiment, 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 modes.

As a preferred embodiment, the device further comprises a left horizontal cylinder 7 and a right horizontal cylinder 71 for controlling the left saw blade 1 and the right saw blade 11 to move left and right, wherein the input end of the left horizontal cylinder 7 and the input end of the right horizontal cylinder 71 are connected with the output end of the controller 8.

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

As a preferred embodiment, the 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 391 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 391 are connected with the output end of the controller 8.

As a preferred embodiment, the rails comprise a left rail 6 and a right rail 61 which are composed of four parallel bar-shaped guide rails, and further comprise a left rack and a right rack, wherein the left rack and the right rack are respectively arranged on the left rail 6 and the right rail 61, the left control main body 3, the left lifting device, the left variable speed motor 31 and the left horizontal cylinder 7 are arranged on the left rack, and the right control main body, the right lifting device, the right variable speed motor and the right horizontal cylinder 71 are arranged on the right rack; 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, frame fixing sliders 551 and frame fixing sliding grooves 56, the frame fixing cylinder 55 is fixedly installed on the left frame or the right frame, one frame fixing slider 551 is installed on each frame fixing cylinder 55, one frame fixing sliding groove 56 is correspondingly provided on each frame fixing slider 551 to be matched with each frame fixing sliding groove 56, and the frame fixing sliding grooves 56 and the frame fixing sliders 551 are installed on the right frame and the right frame respectively.

As a preferred embodiment, an infrared emitter for calibrating the frame fixing slider 551 is installed in the frame fixing chute 56, and an infrared receiving plate corresponding to the infrared emitter is installed at a side of the frame fixing slider 551 close to the frame fixing chute 56.

As a preferred embodiment, the frame mount cylinder 55 input, the infrared emitter input and the infrared receiver plate input are connected to the controller 8 output.

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

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

The cutting modes of the double-cutter four-track disc cutter in the second step comprise a first cutting mode, a second cutting mode, a third cutting mode and a fourth cutting mode, wherein the first cutting mode is that the left saw blade and the right saw blade synchronously lift, synchronously rotate and synchronously advance; the second cutting mode is that the left saw blade and the right saw blade synchronously lift, do not synchronously rotate and synchronously advance; the third cutting mode is that the left saw blade and the right saw blade do not synchronously lift, do not synchronously rotate and synchronously advance; the fourth cutting mode is that the left saw blade and the right saw blade do not synchronously lift, do not synchronously rotate and do not synchronously advance.

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 cooperates with the movement limiting groove to fix the two saw blade rotation shafts in the rotation direction.

As a preferred embodiment, in the second cutting mode, the control frame fixing cylinder 55 fixes the two posts, the control body fixing assembly fixes the two control bodies, and the rotation stopper cooperates with the annular stopper groove to fix the two saw blade rotation shafts in the axial direction.

As a preferred embodiment, in the third cutting mode, the control housing fixing cylinder 55 fixes the two 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 fourth cutting mode, as a preferred embodiment, the control housing fixing cylinder 55 separates the two uprights, 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, in the second step, a downward feeding mode is entered, and cutting is started until the cutting is performed to a specified depth; the forward feed mode is entered and cutting is continued until the specified distance is reached.

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

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

As a preferred embodiment, in the downward feeding 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 the fourth friction threshold coefficient k22 satisfies: k22 is less than or equal to 0.50 and 0.30.

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

In a second preferred embodiment, 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 velocity of the saw blade is reduced until the vibration amplitude is smaller than or equal to the set range.

As a preferred embodiment, the set value of the vibration amplitude is 8-15 μm.

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

As shown in fig. 1 to 14, specifically, in this embodiment, the cutting machine is a double-blade disc cutting machine, including a track, a left saw blade 1 and a right saw blade 11 disposed on two sides of the track, a left feeding device for controlling the left saw blade 1 to feed forward along the track, 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, and a right lifting device for controlling the right saw blade 11 to move up and down, a left rotation control component for controlling the left saw blade 1 to rotate, and a right rotation control component for controlling the right saw blade 11 to rotate, wherein 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 rotation control component and the right rotation control component.

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

The left input gear 311 is arranged on the output shaft of the left variable speed motor 31, the 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 variable speed motor output shaft is provided with a right input gear, the right saw blade rotating shaft 38 is provided with a right output gear, 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 arranged on the left control main body 3, a first left transmission gear 321 and a second left transmission gear 322 are arranged 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 rotary control assembly further includes a right drive shaft mounted on the right control body 39, and a first right drive gear engaged with the right input gear and a second right drive gear engaged with the right output gear mounted on the right drive shaft.

The left variable speed motor 31 controls the left saw blade 1 to rotate through the left saw blade rotating shaft 33, the right variable speed motor controls the right saw blade 11 to rotate through the right saw blade rotating shaft 38, and the left saw blade rotating shaft 33 and the right saw blade rotating shaft 38 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 shaft, 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 8.

Specifically, in this embodiment, the rails include a left rail 6 and a right rail 61 that are formed by four parallel bar-shaped rails, and further include a left frame mounted on the left rail 6 and a right frame mounted on the right rail 61, the left frame includes a left upright 5, the right frame includes a right upright 57, the left rotation control assembly is mounted on the left rail 6 through the left upright 5, and the right rotation control assembly is mounted on the right rail 61 through the right upright 57. 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, a left slide plate 21 is arranged at the output end of the left lifting device, the left slide 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 a left rotation control assembly is arranged on the left slide plate 21; the right lifting device comprises a right lifting slide rail, the right lifting slide rail is arranged on the right upright post 57 along the vertical direction, the right slide plate 22 is arranged at the output end of the right lifting device, the right slide plate 22 is positioned 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 arranged on the right slide plate 22.

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

A left horizontal sliding rail (not shown) is arranged on one side, far away from the left upright post 5, of the left sliding plate 21, a left horizontal sliding block (not shown) is fixedly arranged at a 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 slide 22 is equipped with right horizontal slide rail on keeping away from right stand 57 one side, and right rotation control subassembly and right horizontal slide rail correspond position department fixed mounting have right horizontal slider, and right horizontal slider cover is established in right horizontal slide rail inside.

The slide plate is also provided with a control main body fixing component for fixing the left control main body 39 and the right control main body 39, the control main body fixing component comprises fixing air cylinders 35, fixing pins 351 and fixing installation sleeves 36, more than one fixing air cylinder 35 is fixedly installed on the slide plate on one of the upright posts, each fixing air cylinder 35 is provided with one fixing pin 351, and the position, corresponding to each fixing pin 351, of the slide plate on the other upright post is provided with one fixing installation sleeve 36. The input end of the fixed cylinder 35 is connected with the output end of the controller 8. The control main body fixing assembly is arranged to enable the two control main bodies to synchronously lift, synchronous lifting can be realized by starting only one lifting device in the operation process, and when the two lifting devices are started, the stability of the control main bodies in the movement process can be ensured, and the conditions such as shaking and the like are not easy to occur.

The left sliding plate 21 is provided with a left horizontal cylinder 7, the extension and contraction 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 slide plate 22 is provided with a right horizontal cylinder 71, the extension and contraction direction of the right horizontal cylinder 71 is parallel to the length direction of the right horizontal slide rail, and the right rotation control assembly 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 control main body bottom is still installed and is used for carrying out spacing rotation axis spacing subassembly to two saw bit rotation axes.

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 sleeved on the outer circumference of one of the saw blade rotating shafts; the rotation shaft limiting cylinder 34 can move along the axis direction of the saw blade rotation shaft under the drive 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 spacing section of thick bamboo 34 of rotation axis one end is installed the go-between subassembly, and the go-between subassembly includes go-between body 343 and the go-between connecting part 344 of go-between body 343, and connecting part 344 fixed mounting is at the spacing cylinder 37 expansion end of rotation axis, and connecting part 344 is installed at the spacing section of thick bamboo 34 tip of rotation axis, and connecting part 343 is coaxial with spacing section of thick bamboo 34 of rotation axis and can follow the rotation along its central axis between spacing section of thick bamboo 34 of rotation axis and saw bit rotation axis.

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, far away from the corresponding saw blade, of each of the two saw blade rotating shafts is provided with a rotating limiting block 332 for limiting the rotating direction of the saw blade rotating shaft, and a moving limiting groove 341 for left and right movement of the rotating limiting block 332 and an annular limiting groove 342 for rotating movement of the rotating limiting block 332 are formed in the rotating shaft limiting cylinder 34.

The movement limiting groove 341 is an elongated groove parallel to the axis of the saw blade rotating shaft, and the plane of the annular limiting groove 342 is perpendicular to the movement limiting groove 341.

When the rotation shaft limiter 34 is in the initial position, the rotation limiter 332 is located in the annular limiting groove 342.

The number of the annular limiting grooves 342 is two, a group 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 groups of saw blade rotating shafts.

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

More than two groups of rotating 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 connection position, the rotating limiting blocks 332 are positioned in the annular limiting grooves 342; when the two saw blade rotating shafts are at the second limiting connection position, the rotating limiting blocks 332 are all positioned in the moving limiting grooves 341.

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

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

The input end of the rotating shaft positioning cylinder is connected with the output end of the controller. After the saw blade is subjected to synchronous rotation once or asynchronous rotation, when the operation mode is required to be replaced, the rotating motion of the saw blade is closed, the saw blade speed is gradually reduced, at the moment, the air cylinder is started, the rotating shaft locating sleeve arranged on the movable end of the air cylinder is close to the rotating shaft along with the motion of the movable end of the air cylinder, the setting distance between the rotating shaft locating sleeve and the air cylinder is smaller than the height of the locating block on the rotating shaft of the saw blade, when the locating block rotates to one side of the rotating shaft locating sleeve, the rotating shaft locating sleeve and the locating block 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 the energy required by rotation is smaller than the energy required by overcoming friction force between the rotating shaft locating sleeve and the locating block, the saw blade is stopped and is accommodated in the rotating shaft locating groove of the rotating shaft locating sleeve, so that the locating of the rotating shaft is realized.

Specifically, the positioning groove is an arc groove, the distance between the notch at one end of the arc 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 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 a larger distance from the rotation axis of the saw blade to the other end; one end of the lower end of the positioning block 333, which is in contact with the positioning groove, is provided with an arc-shaped surface, and the tangent point of the arc-shaped surface and the positioning groove is positioned in the positioning groove.

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

Specifically, a rotation shaft positioning buffer unit 393 for buffering the rotation shaft positioning sleeve 392 is further installed on the rotation shaft positioning cylinder 391. The rotary shaft positioning buffer assembly 393 comprises a buffer spring, a buffer seat and a buffer rod, an annular mounting groove for mounting the buffer rod is formed in the rotary shaft positioning sleeve 392, the buffer rod is mounted on the buffer seat, the buffer spring is sleeved on the buffer rod, the buffer rod is mounted inside the annular mounting groove, one end of the buffer spring is connected with the buffer seat, and the other end of the buffer spring is mounted on the periphery of the annular mounting groove. The input end of the rotation shaft positioning cylinder 391 is connected with the output end of the controller 8.

Two ends of the left upright posts 5 are fixed through the left upright post bottom plate 51 and the left upright post top plate 52, two ends of the right upright posts 57 are fixed through the right upright post 57 bottom plate and the right upright post top plate 58, and frame fixing components used for fixing the left upright posts 5 and the right upright posts 57, namely fixing the left frame and the right frame are arranged between the left upright post bottom plate 51 and the right upright post 57 bottom plate and between the left upright post top plate 52 and the right upright post top plate 58. The frame fixing component is arranged to ensure the overall stability of the cutting machine in the synchronous forward feeding process.

The frame fixing assembly comprises frame fixing air cylinders 55, frame fixing sliding blocks 551 and frame fixing sliding grooves 56, the frame fixing air cylinders 55 are fixedly arranged on the left frame bottom plate 51 or the left frame top plate 52, each frame fixing air cylinder 55 is provided with a frame fixing sliding block 551, each frame fixing sliding block 551 is correspondingly provided with a frame fixing sliding groove 56 matched with the frame fixing sliding groove 56, and the frame fixing sliding grooves 56 are arranged on the right frame 57 bottom plate or the right frame 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 slider 551 is installed in the frame fixing chute 56, and an infrared receiving plate (not shown) corresponding to the infrared emitter is installed on one side of the frame fixing slider 551 close to the frame fixing chute 56.

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

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

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

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

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

The distance from the central shaft of each support rod assembly to the central shaft of the saw blade rotating shaft is equal.

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

The support rod assembly comprises a support rod main body 9 and a support rod fixing assembly used for fixing the saw blade at the end part of the support rod main body 9, wherein external threads are formed at the fixed end of the support rod main body 9 and the saw blade, and support rod mounting holes for the support rod main body 9 to pass through are formed at the position of the saw blade corresponding to the support rod main body 9.

The support bar fixing assembly comprises a first stop block 91 and a second stop block 92 for fixing two sides of the saw blade, the first stop block 91 and the second stop block 92 are clung to the side face 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 support bar main body 9.

The side of the first stop 91 remote from the saw blade is provided with a resilient securing member for applying pressure thereto.

When the saw blade is subjected to severe vibration, the first stop block is subjected to transverse acting force, at the moment, the first stop block is possibly damaged due to the tendency of transverse movement of the severe vibration, and then the saw blade cannot be locked; if the saw bit takes place violent vibration, lead to first dog damage, when unable to fix the saw bit, the fixed subassembly of elasticity that sets up can also play the effect of temporarily fixing the 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 in the center, and one side, close to the first stop block 91, of the elastic fixing seat abuts against the first stop block 91. A certain gap exists between the elastic fixing seat and the first stop block or the elastic fixing seat is loosely abutted against one side of the first stop block and is further abutted against the first stop block through a pressure spring therein.

The first stopper 91 is formed with a fixing rod chute at a position corresponding to the elastic fixing rod 94, and the elastic fixing rod 94 is sleeved inside the fixing rod chute 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 arranged on the elastic fixed seat 93, and the other end of the pressure spring is fixedly arranged on the first stop block 91 at the periphery of the fixed rod chute.

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

The disc fixing assembly is mainly used for enhancing the vibration resistance of the saw blade, can enhance the stability of disc cutting and prevent abnormal vibration from damaging the saw blade or accidents and the like.

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

In the first cutting mode, the control frame fixing cylinder 55 fixes the two posts, the control main body fixing assembly fixes the two control main bodies, and the rotation limiting block 332 and the movement limiting groove 341 cooperate to fix the two saw blade rotating shafts along the rotation direction.

When in the first cutting mode, the control frame fixing cylinder 55 fixes the two posts, the control main body fixing assembly fixes the two control main bodies, then the rotating shaft limiting cylinder 34 can move along the axial direction of the rotating shaft of the other saw blade 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 moving limiting grooves 341, and then one variable speed motor is started, so that the two saw blades can synchronously rotate.

In the second cutting mode, the control frame fixing cylinder 55 fixes the two posts, the control body fixing assembly fixes the two control bodies, and the rotation limiting block 332 and the annular limiting groove 342 cooperate to fix the two saw blade rotating shafts along the axial direction.

In the second cutting mode, the control frame fixing cylinder 55 fixes the two posts, the control main body fixing assembly fixes the two control main bodies, then the rotating shaft limiting cylinder 34 can move along the axial direction of the rotating shaft of the other saw blade 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 grooves 342, then the left variable speed motor and the right variable speed motor are started, and the two saw blades can do asynchronous rotating motion.

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

In the fourth cutting mode, the control housing fixing cylinder 55 separates the two posts, the control body fixing assembly separates the two control bodies, and the rotation shaft limiting cylinder 34 is in the initial position.

In the rotating process, the rotating speeds of the saw blades may have a small gap, so that the saw blades can rotate asynchronously, and therefore, the arranged rotating limiting cylinders are respectively positioned in the moving limiting grooves 341 or the annular limiting grooves 342 in different modes, when the saw blade rotating shafts at the left end and the right end need to rotate synchronously, the rotating shaft limiting blocks on the left end and the right end are positioned in the moving limiting grooves 341, and finally, the saw blade rotating shafts have the same initial state, and in the subsequent operating process, the asynchronous rotation is not easy to occur, and when the left saw blade rotating shaft and the right saw blade rotating shaft rotate asynchronously, the saw blade rotating shafts can be accommodated in the annular groove limiting grooves and rotate asynchronously.

In this embodiment, the cutting machine can have different operation modes, can better adapt to different production demands, and the use is 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 is performed to a specified depth;

Step two, entering a forward feeding mode, and continuing cutting until a specified distance is reached;

And thirdly, 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 feeding mode, the downward feeding speed v1 satisfies the following relationship:

The first friction threshold coefficient k11 satisfies: 0.05< k11 is less than or equal to 0.20, and the second friction threshold coefficient k12 meets the following conditions: k12 is more than 0.30 and less than or equal to 0.50.

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

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

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

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

Where f02 denotes a forward-feed standard frictional resistance, v01 denotes a forward-feed set speed, k31 denotes a fifth frictional threshold coefficient, and k32 denotes a sixth frictional threshold coefficient.

The fifth friction threshold coefficient k31 satisfies: 0.05< k31 is less than or equal to 0.20, and the sixth friction threshold coefficient k32 meets the following conditions: 0.30< k32 < 0.50.

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

Where f02 denotes a forward-feed standard frictional resistance, v02 denotes a forward-feed saw blade rotation setting angular velocity, k41 denotes a seventh friction threshold coefficient, and k22 is an eighth friction threshold coefficient.

The seventh friction threshold coefficient k41 satisfies: 0.05< k41 is less than or equal to 0.20, and the eighth friction threshold coefficient k42 meets the following conditions: k42 is less than or equal to 0.30 and less than or equal to 0.50.

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

wherein R represents the radius of the saw blade, L0 represents the saw blade sawing depth set value, k01 is the saw blade side friction resistance coefficient, k02 is the kerf friction resistance coefficient, v03 represents the forward feeding set speed, and v04 represents the forward feeding saw blade rotation 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 angle speed of the saw blade is reduced or the feeding speed is reduced until the vibration amplitude is smaller than or equal to the set range.

The set section of the vibration amplitude is any section of 6 to 18 micrometers, preferably 8 to 15 micrometers. And more preferably 10-12 microns.

Specifically, in this embodiment, two vibration amplitude setting sections are provided, and each setting section is any section 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 below the lower limit of the first set interval;

if the feeding speed is reduced to half of the initial speed and the vibration amplitude is not reduced below the lower limit of the first set interval, 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;

Step three, after the vibration amplitude is reduced below the lower limit of the first set interval, keeping the feeding speed and the rotation angular velocity unchanged, and when the vibration amplitude is reduced below the lower limit of the second set interval, increasing the rotation angular velocity to a rotation velocity which is not influenced by the vibration amplitude; then gradually increasing the feeding speed to the feeding speed which is not affected by the amplitude.

In the third step, when the rotation angular velocity or the feeding velocity is increased, if the vibration amplitude reaches the upper limit of the second set section or more, the rotation angular velocity and the feeding velocity are kept unchanged until the vibration amplitude is reduced to the lower limit of the second set section or less, and then the rotation angular velocity or the feeding 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:

Wherein v0 represents the feed speed without being affected by the amplitude, n is an integer of 1 or more, preferably 3, and formula (1) is triggered when the vibration amplitude is greater than the upper limit of the first set section, and is terminated when the vibration amplitude reaches the lower limit of the first set section; the formula (2) is triggered when the rotation speed has been increased to a rotation angular speed not affected by the amplitude, the amplitude is smaller than the lower limit of the second set section and the feeding speed is smaller than v0/2, and is terminated when v0' =v0/2 or when the amplitude reaches above the upper limit of the second set section; the formula (3) is triggered when the rotation angular velocity has been increased to a rotation angular velocity that is not affected by the amplitude, and when the amplitude is smaller than the second set section upper limit and v 0'. Gtoreq.v0/2, and is terminated when the feeding velocity reaches v0 or when the amplitude reaches above the second set section upper limit; where v0 "is the initial feed rate at the time of triggering.

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 rotational speed without being affected by the amplitude, n is an integer of 1 or more, preferably 3, and 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 section lower limit, and is terminated when the vibration amplitude reaches above the second set section upper limit or when the rotation angular velocity reaches v 0.

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

When the monitored vibration amplitude is not in the set value range, the rotation angle speed and the downward forward feed speed of the saw blade are adjusted to be smaller than or equal to the set range by adjusting priority of the vibration condition. The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The control system of the double-cutter four-track disc cutter 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 blade to feed forwards along the track, a left lifting device and a right lifting device for controlling the saw blade to move up and down, and a left variable speed motor and a right variable speed motor for controlling the saw blade 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 device also comprises a left horizontal cylinder and a right horizontal cylinder for controlling the left saw blade and the right saw blade to move left and right, wherein 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;

The device also comprises a left control main body for mounting the left saw blade and a driving structure thereof, a right control main body for mounting the right saw blade and a driving structure thereof, and a fixed air cylinder for fixing the left control main body and the right control main body, wherein the input end of the fixed air cylinder is connected with the output end of the controller; the left variable speed motor controls the left saw blade to rotate through a left saw blade rotating shaft, and the right variable speed motor controls the right saw blade to rotate through a right saw blade rotating shaft;

The bottom of the control main body is 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 and a rotating shaft limiting cylinder, the rotating shaft limiting cylinder is fixedly arranged at the bottom of the control main body, the rotating shaft limiting cylinder is arranged at the movable end of the rotating shaft limiting cylinder and sleeved on the outer circumference of one of the saw blade rotating shafts, and the input end of the rotating shaft limiting cylinder is connected with the output end of the controller; the connecting ring assembly comprises a connecting ring body and a connecting ring connecting part arranged below the connecting ring body, the connecting ring connecting part is fixedly arranged at the movable end of a rotating shaft limiting cylinder, the connecting ring body is arranged at the end part of the rotating shaft limiting cylinder, and the connecting ring body is coaxial with the rotating shaft limiting cylinder and can rotate along the central axis between the rotating shaft limiting cylinder and the saw blade rotating shaft; an annular groove is formed on the outer circumference of the rotating shaft limiting cylinder at a position corresponding to the connecting ring body, and the connecting ring body is sleeved on the annular groove; one end, far away from the corresponding circular saw blade, of each of the two saw blade rotating shafts is provided with a rotating limiting block for limiting the rotating direction of the saw blade rotating shaft, and a moving limiting groove for left and right movement of the rotating limiting block and an annular limiting groove for rotating movement of the rotating limiting block are formed in the rotating shaft limiting cylinder; the movable limiting groove is a long groove parallel to the axis of the saw blade rotating shaft, and the plane of the annular limiting groove is perpendicular to the movable limiting groove; more than two groups of rotating limiting blocks are arranged on the two saw blade rotating shafts, and the rotating limiting blocks are positioned in the annular limiting grooves when the two saw blade rotating shafts are positioned at the first limiting connection positions; when the two saw blade rotating shafts are positioned at the second limiting connection position, the rotating limiting blocks are positioned in the moving limiting grooves;

The track comprises a left track and a right track which are formed by four parallel strip-shaped guide rails, and also comprises a left rack and a right rack, wherein the left rack and the right rack are respectively arranged 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 arranged 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 arranged on the right rack; a frame fixing assembly for fixing the left frame and the right frame is arranged on the left frame and the right frame; the frame fixing assembly comprises frame fixing air cylinders, frame fixing sliding blocks and frame fixing sliding grooves, wherein the frame fixing air cylinders are fixedly arranged on the left frame or the right frame, each frame fixing air cylinder is provided with one frame fixing sliding block, each frame fixing sliding block is correspondingly provided with one frame fixing sliding groove matched with the corresponding frame fixing sliding block, and the frame fixing sliding grooves and the frame fixing sliding blocks are respectively arranged on the left frame and the right frame;

the left lifting device is characterized in that a left sliding plate is arranged at the output end of the left lifting device, a right sliding plate is arranged at the output end of the right lifting device, and a control main body fixing assembly for fixing a left control main body and a right control main body is also arranged on the left sliding plate and the right sliding plate;

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

The cutting mode of the double-cutter four-track disc cutter 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 is that the left saw blade and the right saw blade synchronously lift, synchronously rotate and synchronously advance; the second cutting mode is that the left saw blade and the right saw blade synchronously lift, do not synchronously rotate and synchronously advance; the third cutting mode is that the left saw blade and the right saw blade do not synchronously lift, do not synchronously rotate and synchronously advance; the fourth cutting mode is that the left saw blade and the right saw blade do not synchronously lift, do not synchronously rotate and do not synchronously advance;

when in the first cutting mode, the control rack fixing air cylinder fixes the two racks, the control main body fixing assembly fixes the two control main bodies, and the rotary limiting block is matched with the movable limiting groove to fix the two saw blade rotary shafts along the rotary direction.

2. The control system of the double-blade four-track disc cutter according to claim 1, wherein a resistance sensor for monitoring resistance of the left saw blade and the right saw blade and a vibration sensor for monitoring vibration of the rotating shafts are installed on the left saw blade rotating shaft and the right saw blade rotating shaft, and an output end of the resistance sensor and an output end of the vibration sensor are connected with an input end of the controller.

3. The control system of a double-blade four-rail disc cutter according to claim 2, further comprising 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 rotation shaft limiting cylinder input end and the rotation shaft positioning cylinder input end are connected with the controller output end.

4. The control system of the double-cutter four-track disc cutter according to claim 3, wherein an infrared emitter for calibrating a frame fixing sliding block is arranged in the frame fixing sliding groove, and an infrared receiving plate corresponding to the infrared emitter is arranged on one side of the frame fixing sliding block close to the frame fixing sliding groove; the input end of the frame fixing cylinder, the input end of the infrared transmitter and the input end of the infrared receiving plate are connected with the output end of the controller.