Sapphire square brick cutting swing mechanism

By designing the sapphire brick cutting swing mechanism, the lifting pneumatic rod and drive the swing assembly to swing, changing the contact point between the cutting rope and the brick, the problems of heat accumulation and wear in the traditional cutting method are solved, and the cutting fineness is improved and finish.

CN222178300UActive Publication Date: 2024-12-17南京瑞杜新材料科技有限公司
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Patent Information

Application Number
CN202420045208.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-01-09
Publication Date
2024-12-17
Estimated Expiration
2034-01-09

AI Technical Summary

Technical Problem

Traditional sapphire square tiles cutting methods lead to heat accumulation, which easily causes square tiles to break, increases wear speed, and reduces finish and fineness.

Method used

A sapphire brick cutting swing mechanism is designed, which drives the swing assembly and clamping assembly to lift and swing through the lifting pneumatic rod, changes the contact point between the cutting rope and the square brick, and uses the driving motor, rotating rod, swing rod and sliding groove. Cooperate to achieve swing, reducing friction and heat accumulation.

Benefits of technology

It effectively reduces heat accumulation and friction during the cutting process, improves the finish and cutting fineness of sapphire square tiles, and reduces wear speed.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a sapphire square brick cutting swing mechanism which comprises a mounting plate. A cutting device is mounted on the top face of the mounting plate, a stand column is fixedly connected to one end of the middle of the top face of the mounting plate, a limiting groove is formed in the upper portion of one side of the stand column, a lifting pneumatic rod is fixedly connected to the bottom of an inner cavity of the limiting groove, and a lifting block is fixedly connected to the output shaft end of the lifting pneumatic rod. The lifting block slides in an inner cavity of the limiting groove, a swing assembly is installed on one side of the lifting block, a clamping assembly is installed at one end of the swing assembly, and a sapphire square brick is clamped in the middle of the clamping assembly; the swing assembly comprises a fixing plate, and one side of the lifting block is fixedly connected with the fixing plate. Through the mutual cooperation of the cutting device, the lifting pneumatic rod, the lifting block, the swing assembly and the clamping assembly, when sapphire square bricks are cut, sapphire is swung at the same time, and the sapphire square bricks can be rapidly cooled when being cut.
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Description

Technical Field

[0001] The utility model relates to the technical field of sapphire square brick cutting and swinging, in particular to a sapphire square brick cutting and swinging mechanism. Background Art

[0002] When cutting traditional sapphire square bricks, first, place the sapphire square brick in the middle of the clamp, then clamp and fix the sapphire with the clamp. After the sapphire is clamped and fixed, the staff starts the cutting equipment and starts the lifting pneumatic rod. When the lifting pneumatic rod works, it will drive the clamp and the sapphire square brick to move toward the cutting equipment. At this time, the sapphire square brick will start to be cut by the cutting equipment and cut into thin slices.

[0003] Because, when the above-mentioned sapphire square brick is sliced, a lifting pneumatic rod is used to drive the sapphire square brick to upgrade in a straight line to achieve the cutting of sapphire. However, this cutting method makes it easy for the cutting point between the sapphire square brick and the cutting rope to not change during cutting, so that a large amount of heat is generated during friction cutting. If the heat cannot be discharged in time, the sapphire square brick is prone to cracking. At the same time, when the cutting rope performs a straight line depth cutting on the sapphire, it not only increases the overall friction, but also accelerates the wear rate and reduces the smoothness and fineness of the sapphire surface.

[0004] Therefore, there is a need for a swing mechanism for cutting sapphire square tiles that can quickly dissipate heat, reduce wear, and improve smoothness and fineness. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a sapphire square brick cutting swing mechanism, which solves the problems mentioned in the background technology.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The sapphire square brick cutting swing mechanism comprises a mounting plate; a cutting device is mounted on the top surface of the mounting plate, a column is fixedly connected to one end of the middle part of the top surface of the mounting plate, a limiting groove is arranged on the upper part of one side of the column, a lifting pneumatic rod is fixedly connected to the bottom of the inner cavity of the limiting groove, a lifting block is fixedly connected to the output shaft end of the lifting pneumatic rod, the lifting block slides in the inner cavity of the limiting groove, a swing assembly is mounted on one side of the lifting block, a clamping assembly is mounted on one end of the swinging assembly, and a sapphire square brick is clamped in the middle of the clamping assembly;

[0008] The swing assembly includes a fixed plate, one side of the lifting block is fixedly connected to a fixed plate, one side of the fixed plate is fixedly connected to a driving motor, the output shaft end of the driving motor is rotatably connected to a rotating rod through a worm and a worm gear, one end of the rotating rod passes through the fixed plate and is rotatably connected to the fixed plate, one side of the fixed plate is fixedly connected to a disc, one side of the disc is fixedly connected to a sliding column, the other side of the fixed plate is rotatably connected to a swing shaft, one side of the swing shaft is fixedly connected to a swing rod, a sliding groove is provided on the upper part of one side of the swing rod, and the sliding column slides in the sliding groove.

[0009] Furthermore, the clamping assembly includes a clamping plate, the bottom of the rocker arm is fixedly connected to the clamping plate, the bottom of the clamping plate is respectively provided with a screw groove and a T-slot, the inner cavity of the screw groove is rotatably connected to a bidirectional screw, the two ends of the outer surface of the bidirectional screw are respectively threadedly connected to clamping claws, one end of the clamping claw is located in the T-slot and slides, and the clamping claw is L-shaped.

[0010] Furthermore, the clamping assembly also includes a lower pressure plate, the middle part of the bottom surface of the clamping plate is fixedly connected to the lower pressure plate, the bottom surface of the lower pressure plate is fixedly connected to a sleeve, the bottom surface of the sleeve is rotatably connected to a threaded sleeve, the middle part of the threaded sleeve is threadedly connected to a threaded lower pressure rod, and the bottom surface of the threaded lower pressure rod is rotatably connected to a lower pressure plate.

[0011] Furthermore, the cutting device includes a main cutting component, a slave cutting component and a cutting rope. The main cutting component and the slave cutting component are respectively installed on the top surface of the mounting plate and at both ends of the column. The main cutting component is connected to the slave cutting component through a cutting rope.

[0012] Furthermore, the main cutting assembly includes a main vertical plate, the top surface of the mounting plate is fixedly connected to the main vertical plate, the upper part of one side of the main vertical plate is fixedly connected to a cutting motor, the output shaft end of the cutting motor is connected to a main rotating rod through a worm and a worm gear, and one end of the main rotating rod passes through the main vertical plate and is fixedly connected to a main cutting wheel.

[0013] Furthermore, the slave cutting assembly includes a slave column, the top surface of the mounting plate is fixedly connected to the slave column, the top surface of the slave column is fixedly connected to a first square frame, the middle part of the first square frame is slidably connected to a second square frame, one end of the second square frame is fixedly connected to a cylinder, the other end of the second square frame is fixedly connected to a displacement screw, the outer surface of the displacement screw is threadedly connected to a displacement nut, the inner surface of the second square frame is fixedly connected to a damping rod, one end of the damping rod is fixedly connected to a square block, the middle part of the square block is rotatably connected to a slave rotating rod, one end of the slave rotating rod is fixedly connected to a slave cutting wheel, and the main cutting wheel is rotatably connected to the slave cutting wheel via a cutting rope.

[0014] The utility model provides a sapphire square brick cutting swing mechanism. Compared with the prior art, it has the following beneficial effects:

[0015] 1. Through the cooperation of the bidirectional screw, the clamping claw and the T-slot, the two ends of the sapphire bricks of different widths can be clamped and fixed. Then, through the cooperation of the threaded down-pressing rod, the down-pressing plate and the clamping claw, the sapphire bricks of different thicknesses can be clamped and fixed. Through the overall clamping assembly, the sapphire bricks of different thicknesses and widths can be clamped and fixed.

[0016] 2. When the lifting block is driven to move up and down by the lifting pneumatic rod, the swing assembly and the clamping assembly will also be driven to move up and down. When the clamping assembly is lifted up and down, the sapphire brick will be driven to move up and down. When the sapphire brick is lifted up and down, it will be cut into pieces by the cutting device;

[0017] 3. Through the cooperation of the driving motor, rotating rod, rocker arm, rocker shaft and sliding groove in the rocker assembly, the rocker arm can swing back and forth around the rocker shaft. When the rocker arm swings, the clamping assembly will be driven to swing, and when the clamping assembly swings, the sapphire brick will be driven to swing. When the sapphire brick is swinging, the contact point between the brick and the cutting rope will be changed, so as to prevent high temperature from being generated during re-cutting and reduce the friction between the cutting rope and the sapphire brick. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The utility model overall structure schematic diagram is shown;

[0020] Figure 2 Another structural diagram of the utility model is shown;

[0021] Figure 3 The utility model shows a schematic diagram of the cutting component structure;

[0022] Figure 4 The utility model column structure schematic diagram is shown;

[0023] Figure 5 A schematic diagram of the side structure of the swing assembly and the clamping assembly of the utility model is shown;

[0024] Figure 6The utility model shows a schematic diagram of the structure of the swing assembly;

[0025] Figure 7 The schematic diagram of the structure of the clamping assembly of the utility model is shown;

[0026] As shown in the figure: 1. Mounting plate; 2. Cutting device; 21. Main cutting assembly; 211. Main vertical plate; 212. Cutting motor; 213. Main rotating rod; 214. Main cutting wheel; 22. Slave cutting assembly; 221. Slave column; 222. First square frame; 223. Second square frame; 224. Cylinder; 225. Displacement screw; 226. Displacement nut; 227. Damping rod; 228. Square block; 229. Slave rotating rod; 2210. Slave cutting wheel; 23. Cutting rope; 3. Column; 4. Limiting groove; 5. Lifting pneumatic rod; 6. Lifting block; 7. Swinging assembly; 71. Fixed plate; 72. Driving motor; 73. Rotating rod; 74. Disc; 75. Sliding column; 76. Swinging shaft; 77. Rocker rod; 78. Sliding groove; 8. Clamping assembly; 81. Clamping plate; 82. Screw groove; 83. T-slot; 84. Bidirectional screw; 85. Clamping claw; 86. Lower pressure plate; 87. Sleeve; 88. Threaded sleeve; 89. Threaded lower pressure rod; 810. Lower pressure plate; 9. Sapphire square brick. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1

[0029] In order to solve the technical problems in the background technology, the following sapphire square brick cutting swing mechanism is provided:

[0030] Combination Figure 1-Figure 7As shown, the sapphire square brick cutting swing mechanism provided by the utility model comprises a mounting plate 1; a cutting device 2 is mounted on the top surface of the mounting plate 1, a column 3 is fixedly connected to one end of the middle part of the top surface of the mounting plate 1, a limiting groove 4 is arranged on the upper part of one side of the column 3, a lifting pneumatic rod 5 is fixedly connected to the bottom of the inner cavity of the limiting groove 4, a lifting block 6 is fixedly connected to the output shaft end of the lifting pneumatic rod 5, the lifting block 6 is located in the inner cavity of the limiting groove 4 and slides, a swing assembly 7 is mounted on one side of the lifting block 6, a clamping assembly 8 is mounted on one end of the swing assembly 7, a sapphire square brick 9 is clamped in the middle of the clamping assembly 8; the swing assembly 7 comprises a fixed plate 71, A fixed plate 71 is fixedly connected to one side of the lifting block 6, and a driving motor 72 is fixedly connected to one side of the fixed plate 71. The output shaft end of the driving motor 72 is rotatably connected to a rotating rod 73 through a worm and a worm gear. One end of the rotating rod 73 passes through the fixed plate 71 and is rotatably connected to the fixed plate 71. A disc 74 is fixedly connected to one side of the fixed plate 71, and a sliding column 75 is fixedly connected to one side of the disc 74. The other side of the fixed plate 71 is rotatably connected to a swing shaft 76, and one side of the swing shaft 76 is fixedly connected to a swing rod 77. A sliding groove 78 is provided on the upper part of one side of the swing rod 77, and the sliding column 75 slides in the sliding groove 78.

[0031] The driving motor 72 in the swing assembly 7 drives the disc 74 and the sliding column 75 to rotate. When the sliding column 75 rotates, it will slide in the sliding groove 78. When the sliding column 75 rotates, it will drive the rocker arm 77 to swing back and forth. When the rocker arm 77 rotates, it will drive the clamping assembly 8 to rotate back and forth. When the clamping assembly 8 rotates back and forth, it will drive the sapphire square brick 9 to rotate back and forth. When the sapphire square brick 9 swings back and forth, the cooling speed can be accelerated during cutting, and the friction between the cutting rope and the sapphire square brick 9 will be reduced.

[0032] Embodiment 2

[0033] like Figure 1-Figure 7 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0034] The clamping assembly 8 includes a clamping plate 81, to which the clamping plate 81 is fixedly connected at the bottom of the rocker arm 77, a screw groove 82 and a T-slot 83 are respectively arranged at the bottom of the clamping plate 81, a bidirectional screw 84 is rotatably connected to the inner cavity of the screw groove 82, and clamping claws 85 are respectively threadedly connected at both ends of the outer surface of the bidirectional screw 84, one end of the clamping claw 85 slides in the T-slot 83, and the clamping claw 85 is L-shaped; the clamping assembly 8 also includes a lower pressure plate 86, to which the lower pressure plate 86 is fixedly connected at the middle part of the bottom surface of the clamping plate 81, a sleeve 87 is fixedly connected to the bottom surface of the lower pressure plate 86, a threaded sleeve 88 is rotatably connected to the bottom surface of the sleeve 87, a threaded lower pressure rod 89 is threadedly connected to the middle part of the threaded lower pressure rod 89, and a lower pressure plate 810 is rotatably connected to the bottom surface of the threaded lower pressure rod 89.

[0035] By the cooperation between the bidirectional screw 84 and the clamping claw 85 in the clamping assembly 8, sapphire square bricks 9 of different widths can be clamped. Then, the threaded pressing rod 89 cooperates with the clamping claw 85 to clamp and fix sapphire square bricks 9 of different thicknesses.

[0036] Embodiment 3

[0037] like Figure 1-Figure 7 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0038] The cutting device 2 includes a main cutting assembly 21, a sub-cutting assembly 22 and a cutting rope 23. The main cutting assembly 21 and the sub-cutting assembly 22 are respectively installed on the top surface of the mounting plate 1 and at both ends of the column 3. The main cutting assembly 21 is connected to the sub-cutting assembly 22 through the cutting rope 23. The main cutting assembly 21 includes a main vertical plate 211. The top surface of the mounting plate 1 is fixedly connected to the main vertical plate 211. The upper part of one side of the main vertical plate 211 is fixedly connected to a cutting motor 212. The output shaft end of the cutting motor 212 is rotatably connected to a main rotating rod 213 through a worm gear and a worm wheel. One end of the main rotating rod 213 passes through the main vertical plate 211 and is fixedly connected to a main cutting wheel 214. The slave cutting assembly 22 includes a slave column 221, the top surface of the mounting plate 1 is fixedly connected to the slave column 221, the top surface of the slave column 221 is fixedly connected to a first square frame 222, the middle of the first square frame 222 is slidably connected to a second square frame 223, one end of the second square frame 223 is fixedly connected to a cylinder 224, the other end of the second square frame 223 is fixedly connected to a displacement screw 225, the outer surface of the displacement screw 225 is threadedly connected to a displacement nut 226, the inner surface of the second square frame 223 is fixedly connected to a damping rod 227, one end of the damping rod 227 is fixedly connected to a square block 228, the middle of the square block 228 is rotatably connected to a slave rotating rod 229, one end of the slave rotating rod 229 is fixedly connected to a slave cutting wheel 2210, and the main cutting wheel 214 is rotatably connected to the slave cutting wheel 2210 through a cutting rope 23.

[0039] The sapphire bricks 9 are cut by the cutting device 2 so that the sapphire bricks 9 are cut into sheets.

[0040] The working principle and use process of this utility model:

[0041] In use:

[0042] During cutting, first, place the sapphire brick 9 between the two clamping claws 85. After placing it, rotate the bidirectional screw 84. As the bidirectional screw 84 rotates, the two clamping claws 85 are driven to approach each other, so that the sapphire brick 9 can be clamped and fixed. After the clamping claws 85 clamp the two ends of the sapphire brick 9, rotate the threaded sleeve 88. As the threaded sleeve 88 rotates, the threaded pressing rod 89 is driven to move downward. As the threaded pressing rod 89 moves downward, the lower pressure plate 810 is driven to move downward. When one side of the lower pressure plate 810 contacts one side of the sapphire brick 9, the sapphire bricks 9 of different thicknesses can be clamped and fixed by the clamping claws 85.

[0043] After clamping and fixing, at this time, start the cutting motor 212. When the cutting motor 212 works at any time, the main rotating rod 213 will be driven to rotate through the worm and the worm gear. When the main rotating rod 213 rotates, the main cutting wheel 214 will be driven to rotate. When the main cutting wheel 214 rotates, the slave cutting wheel 2210 will be driven to rotate through the cutting rope 23. When the cutting rope 23 rotates, at this time, start the lifting pneumatic rod 5. When the lifting pneumatic rod 5 works, the lifting block 6 will be driven to move downward as a whole. When the lifting block 6 moves downward, the swing assembly 7 will be driven to move downward. When the swing assembly 7 moves downward, the clamping assembly 8 and the sapphire brick 9 will be driven to move downward. When the sapphire brick 9 moves downward, the sapphire brick 9 can be cut by the cutting rope. During cutting, a coolant is used to cool it down, but the coolant is not shown in the figure.

[0044] During cutting, the drive motor 72 is started. When the drive motor 72 is working, the rotating rod 73 will be driven to rotate through the worm and the worm gear. When the rotating rod 73 rotates, the disc 74 will be driven to rotate. When the disc 74 rotates, the sliding column 75 will be driven to perform circular motion. When the sliding column 75 reciprocates, the swing rod 77 will be driven to swing back and forth around the swing axis 76. When the swing rod 77 swings back and forth, the clamping assembly 8 and the sapphire square brick 9 will be driven to swing back and forth. When the sapphire square brick 9 is cut, it will also swing back and forth. At this time, through reciprocating swinging and cutting, when the sapphire square brick 9 is cut, the contact point between the sapphire square brick 9 and the cutting rope will be changed during the swinging, thereby accelerating the dispersion of frictional heat, thereby dissipating the heat to a larger area, and reducing the friction between the cutting rope and the sapphire square brick, so that the surface of the sapphire square brick is cut more smoothly and delicately.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. Sapphire brick cutting swing mechanism, characterized by: It comprises a mounting plate (1); a cutting device (2) is mounted on the top surface of the mounting plate (1); a column (3) is fixedly connected to one end of the middle portion of the top surface of the mounting plate (1); a limiting groove (4) is arranged on the upper portion of one side of the column (3); a lifting pneumatic rod (5) is fixedly connected to the bottom of the inner cavity of the limiting groove (4); a lifting block (6) is fixedly connected to the output shaft end of the lifting pneumatic rod (5); the lifting block (6) is located in the inner cavity of the limiting groove (4) and slides; a swing assembly (7) is mounted on one side of the lifting block (6); a clamping assembly (8) is mounted on one end of the swinging assembly (7); a sapphire square brick (9) is clamped in the middle of the clamping assembly (8); The swing assembly (7) comprises a fixed plate (71), one side of the lifting block (6) is fixedly connected to the fixed plate (71), one side of the fixed plate (71) is fixedly connected to a driving motor (72), an output shaft end of the driving motor (72) is rotatably connected to a rotating rod (73) through a worm gear and a worm wheel, one end of the rotating rod (73) passes through the fixed plate (71) and is rotatably connected to the fixed plate (71), one side of the fixed plate (71) is fixedly connected to a disk (74), one side of the disk (74) is fixedly connected to a sliding column (75), the other side of the fixed plate (71) is rotatably connected to a swing shaft (76), one side of the swing shaft (76) is fixedly connected to a swing rod (77), a sliding groove (78) is provided on the upper part of one side of the swing rod (77), and the sliding column (75) is located in the sliding groove (78) and slides.

2. The sapphire square brick cutting swing mechanism according to claim 1, characterized in that: The clamping assembly (8) comprises a clamping plate (81), the bottom of the swing rod (77) is fixedly connected to the clamping plate (81), the bottom of the clamping plate (81) is respectively provided with a screw groove (82) and a T-shaped groove (83), the inner cavity of the screw groove (82) is rotatably connected to a bidirectional screw (84), the two ends of the outer surface of the bidirectional screw (84) are respectively threadedly connected to clamping claws (85), one end of the clamping claw (85) is located in the T-shaped groove (83) and slides, and the clamping claw (85) is L-shaped.

3. The sapphire square brick cutting swing mechanism according to claim 2, characterized in that: The clamping assembly (8) also includes a lower pressure plate (86), the lower pressure plate (86) is fixedly connected to the middle part of the bottom surface of the clamping plate (81), the lower surface of the lower pressure plate (86) is fixedly connected to the sleeve (87), the bottom surface of the sleeve (87) is rotatably connected to a threaded sleeve (88), the middle part of the threaded sleeve (88) is threadedly connected to a threaded lower pressure rod (89), and the bottom surface of the threaded lower pressure rod (89) is rotatably connected to a lower pressure plate (810).

4. The sapphire square brick cutting swing mechanism according to claim 3, characterized in that: The cutting device (2) comprises a main cutting component (21), a sub-cutting component (22) and a cutting rope (23); the main cutting component (21) and the sub-cutting component (22) are respectively installed on the top surface of the mounting plate (1) and at both ends of the column (3); the main cutting component (21) is connected to the sub-cutting component (22) via the cutting rope (23).

5. The sapphire square brick cutting swing mechanism according to claim 4, characterized in that: The main cutting assembly (21) comprises a main vertical plate (211), the top surface of the mounting plate (1) is fixedly connected to the main vertical plate (211), the upper part of one side of the main vertical plate (211) is fixedly connected to a cutting motor (212), the output shaft end of the cutting motor (212) is rotatably connected to a main rotating rod (213) through a worm gear and a worm wheel, and one end of the main rotating rod (213) passes through the main vertical plate (211) and is fixedly connected to a main cutting wheel (214).

6. The sapphire square brick cutting swing mechanism according to claim 5, characterized in that: The slave cutting assembly (22) comprises a slave column (221), the top surface of the mounting plate (1) is fixedly connected to the slave column (221), the top surface of the slave column (221) is fixedly connected to a first square frame (222), the middle of the first square frame (222) is slidably connected to a second square frame (223), one end of the second square frame (223) is fixedly connected to a cylinder (224), the other end of the second square frame (223) is fixedly connected to a displacement screw (225), and the displacement screw The outer surface of the rod (225) is threadedly connected with a displacement nut (226); the inner surface of the second square frame (223) is fixedly connected with a damping rod (227); one end of the damping rod (227) is fixed with a square block (228); the middle part of the square block (228) is rotatably connected with a slave rotating rod (229); one end of the slave rotating rod (229) is fixedly connected with a slave cutting wheel (2210); and the main cutting wheel (214) is rotatably connected with the slave cutting wheel (2210) via a cutting rope (23).