Saw blade feeding device and automobile waste tire bisection machine

Abstract

The invention relates to a saw blade feeding device and an automobile waste tire bisecting machine, the saw blade feeding device comprises a base plate, the two horizontal sides of the base plate in the first inclined direction are provided with guiding pieces, and the guiding pieces are provided with abutting curved surfaces; the side guide wheel assembly comprises a guide wheel frame and a plurality of guide wheels rotationally connected to the guide wheel frame, the guide wheels are symmetrically arranged on the two horizontal sides of the base plate in the first inclined direction, annular grooves extending in the circumferential direction of the guide wheels are formed in the circumferential side walls of the guide wheels, and the annular grooves abut against the abutting curved surface from the two horizontal sides of the base plate in the first inclined direction; the annular groove is matched with the abutting curved surface in a profiling manner; and the cutting assembly is arranged on the base plate and used for cutting the tire. The dustproof performance is improved, accurate linear feeding of the saw blade is guaranteed, and stable operation can be achieved in the complex cutting environment.

Description

Technical Field

[0001] The present invention relates to the technical field of tire cutting equipment, and in particular to a saw blade feeding device and an automobile waste tire cross-cutting machine. Background Art

[0002] The recycling of waste tires shows significant social benefits in the development of circular economy. As a key equipment in the recycling process, waste tire cutting machines are of great significance for realizing the circular reuse of tire resources and have broad market prospects. Tire cutting machines achieve cutting through the mechanical shearing action between a high-speed rotating saw blade and tire materials. As its main actuator, the current saw blade feeding device relies on the cooperation of a slide rail and a slider to achieve precise linear feeding of the saw blade.

[0003] However, the multi-layer composite characteristics of tire materials result in a large amount of high-hardness debris (such as rubber particles and metal broken wires) during the cutting process. The slide rail-slider of the existing saw blade feeding device has inherent deficiencies in anti-debris design and is difficult to effectively block debris from falling into the kinematic pair gap. Once debris enters the slide rail contact surface, it will not only exacerbate the sliding friction of the slide rail, cause abnormal surface wear, but also lead to a decrease in the feeding accuracy of the saw blade and an increase in equipment vibration, and even cause the slider to jam or the drive system to overload, seriously affecting the cutting efficiency and equipment life, and it is difficult to meet the requirements of high-intensity, high-precision, and continuous operation of tire cutting machines. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the dust-proof performance of the saw blade feeding device in the prior art is insufficient, and plastic particles enter the kinematic pair gap of the saw blade feeding device, resulting in a decrease in the feeding accuracy of the saw blade feeding device. Furthermore, a saw blade feeding device and an automobile waste tire cross-cutting machine are provided, which improve the dust-proof performance of the saw blade feeding device and ensure the precise linear feeding of the saw blade.

[0005] To solve the above technical problem, the present invention provides a saw blade feeding device, including, A base plate, on the horizontal two sides along the first diagonal direction, guiding members are provided, and the guiding members are provided with abutting curved surfaces; A side guide wheel assembly, which includes a guide wheel frame and a plurality of guide wheels rotatably connected to the guide wheel frame. The plurality of guide wheels are symmetrically arranged on the horizontal two sides of the base plate along the first diagonal direction. The circumferential side wall of the guide wheel is provided with an annular groove extending along its circumference. The plurality of annular grooves abut against the abutting curved surfaces from the horizontal two sides of the base plate along the first diagonal direction, and the annular groove and the abutting curved surface are profile-matched; A cutting assembly, which is arranged on the base plate and is used for cutting tires.

[0006] In an embodiment of the present invention, it further includes an adjusting component. The adjusting component includes a first adjusting plate and a second adjusting plate arranged horizontally. The first adjusting plate is stacked on the second adjusting plate. The side guide wheel assembly is arranged on the first adjusting plate. The first adjusting plate is provided with a first strip-shaped hole extending longitudinally, and the second adjusting plate is provided with a first screw hole. A fixing member passes through the first strip-shaped hole and connects to the first screw hole.

[0007] In an embodiment of the present invention, it further includes a machine table and support members distributed on both sides of the machine table along the longitudinal direction. The support members include a support plate and a connecting plate. The connecting plate connects the machine table, and the support plate is arranged vertically and movably connected to the second adjusting plate.

[0008] In an embodiment of the present invention, the second adjusting plate is provided with a second strip-shaped hole extending transversely, and the top of the support plate is provided with a second screw hole. A fixing member passes through the second strip-shaped hole and connects to the second screw hole.

[0009] In an embodiment of the present invention, both ends of the support plate on one side of the machine table are provided with the second screw holes; one end of the support plate on the other side of the machine table is provided with the second screw hole, and the second screw hole is located at the end far from the object to be cut.

[0010] In an embodiment of the present invention, the connecting plate is provided with a third strip-shaped hole extending obliquely in a second direction, and the machine table is provided with a third screw hole. A fixing member passes through the third strip-shaped hole and connects to the third screw hole.

[0011] In an embodiment of the present invention, the first oblique direction, the second oblique direction, the transverse direction, and the longitudinal direction are all horizontal directions. The transverse direction is perpendicular to the longitudinal direction. The first oblique direction and the second oblique direction are both between the transverse direction and the longitudinal direction, and the first oblique direction and the second oblique direction are symmetrical about the transverse direction.

[0012] In an embodiment of the present invention, the guiding member is set as a circular tube. The circular tube extends along the first oblique direction, and the circumferential side wall of the circular tube abuts against the annular groove.

[0013] In an embodiment of the present invention, it further includes a driver arranged on the first adjusting plate. The driver drives the substrate to move along the first oblique direction.

[0014] In an embodiment of the present invention, a vertical plate is provided on the substrate, and the vertical plate and the output end of the driver are connected through a push plate.

[0015] In one embodiment of the present invention, the cutting assembly includes a saw blade, a mounting base, a speed reducer disposed on the mounting base, and a saw blade driving motor disposed on the substrate. The saw blade driving motor drives the saw blade to rotate through the speed reducer.

[0016] In one embodiment of the present invention, the diameter of the circular tube is greater than the thickness of the substrate, and the circumferential side wall of the circular tube is disposed higher than the upper surface of the substrate.

[0017] In one embodiment of the present invention, both the first adjusting plate and the second adjusting plate are provided with handles.

[0018] There is also provided a cutting machine for used automobile tires, which includes the saw blade feeding device, and further includes a tire lifting frame, and left and right cutting bodies symmetrically arranged. The saw blade feeding device is symmetrically arranged on the left and right cutting bodies, and the tire lifting frame is arranged directly below the middle between the left and right cutting bodies.

[0019] The above technical solution of the present invention has the following advantages compared with the prior art: In the saw blade feeding device of the present invention, the guide wheel is in rolling contact with the abutting surface of the substrate through the annular groove. During the rolling process of the guide wheel, when tire debris enters the annular groove, the debris naturally rolls down along the abutting surface or is thrown out under the centrifugal force of the guide wheel, so that the debris is not easily retained between the guide wheel and the substrate, greatly reducing the wear of the debris on the guide wheel, reducing the vibration of the guide wheel, and ensuring the precise linear feeding of the saw blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the content of the present invention easier to be clearly understood, the following further details the present invention according to the specific embodiments of the present invention and in combination with the accompanying drawings.

[0021] Figure 1 It is a schematic structural diagram of the top view of the saw blade feeding device of the present invention; Figure 2 It is Figure 1 the view of A-A shown; Figure 3 It is Figure 1 the schematic structural diagram of the side guide wheel assembly shown; Figure 4 It is Figure 1 the partial structural schematic diagram of the machine table, the support member and the second adjusting plate shown; Figure 5 It is a schematic structural diagram of the side view of the substrate, the circular tube, the mounting base and the vertical plate of the present invention; Figure 6 It is Figure 5Schematic structural diagram of the top view of the substrate, circular tube, mounting seat, and vertical plate shown; Figure 7 Schematic structural diagram of the second adjusting plate and the handle according to the present invention; Figure 8 Side view of the saw blade feeding device and the automotive waste tire cross-cutting machine according to the present invention; Figure 9 For Figure 8 Top view of the saw blade feeding device and the automotive waste tire cross-cutting machine shown; Explanation of the reference numerals in the specification drawings: 1. Substrate; 11. Guide member; 111. Contact surface; 12. Vertical plate; 13. Circular tube; 2. Side guide wheel assembly; 21. Guide wheel frame; 22. Guide wheel; 23. Annular groove; 24. Guide wheel bearing; 25. Third strip hole; 26. First fixing member; 27. Rotating shaft; 3. Saw blade; 31. Saw blade driving motor; 32. Reducer; 33. Mounting seat; 34. Pushing plate; 35. Driver; 36. Cylinder seat; 4. Second adjusting plate; 41. Second strip hole; 42. Second fixing member; 43. Handle; 44. Third fixing member; 45. Fourth fixing member; 5. First adjusting plate; 51. First strip hole; 52. Fifth fixing member; 53. Handle; 6. Support member; 61. Connecting plate; 62. Support plate; 63. Support plate; 7. Machine table; 8. Left cross-cutting body; 81. Right cross-cutting body; 82. Tire lifting frame; 9. Saw blade feeding device; 91. Saw blade feeding device; 10. Tire. Detailed implementation manners

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and be able to implement it, but the examples given are not intended to limit the present invention. Embodiment

[0023] In an embodiment of the present invention, referring to Figure 1 , Figure 2 , Figure 3 and Figure 5 shown, a saw blade feeding device of the present invention includes A substrate 1, on the horizontal sides along the first diagonal, is provided with guide members 11, and the guide members 11 are provided with contact surfaces 111; A side guide wheel assembly 2, which includes a guide wheel frame 21 and a plurality of guide wheels 22 rotatably connected to the guide wheel frame 21. The plurality of guide wheels 22 are symmetrically arranged on the horizontal sides of the substrate 1 along the first diagonal. The circumferential side wall of the guide wheel 22 is provided with an annular groove 23 extending along its circumference. The plurality of annular grooves 23 abut against the contact surfaces 111 from the horizontal sides of the substrate along the first diagonal, and the annular groove and the contact surface 111 are in profile matching.

[0024] A cutting assembly is disposed on the substrate 1 and is used for cutting tires.

[0025] In the saw blade feeding device described in this embodiment, under the push of an external force, the substrate 1 moves along the first diagonal direction. After being guided by the guide wheel 22, the cutting assembly linearly feeds along the first diagonal direction to cut the waste tire 10. When the debris generated by cutting enters the gap between the annular groove 23 and the abutting surface 111, on the one hand, the gravity makes the debris roll down naturally along the surface, and it is not easy for the debris to stay between the annular groove 23 and the abutting surface 111. On the other hand, the centrifugal force of the guide wheel 22 throws the debris out of the annular groove 23, avoiding the stay and accumulation of debris between the guide wheel 22 and the substrate 1, reducing the wear of the debris on the guide wheel 22, enabling the guide wheel 22 to stably and continuously guide in a complex environment, and enabling the cutting assembly to accurately linearly feed.

[0026] Refer to Figure 1 As shown, in an embodiment of the present invention, the substrate 1 is horizontally arranged. The left and right ends of the substrate 1 along the first diagonal direction are both provided with abutting surfaces 111. The cross-section of the abutting surface 111 is arc-shaped. The two abutting surfaces 111 at both ends respectively match the annular grooves 23 on both sides, and the two abutting surfaces 111 at both ends are respectively abutted and suspended by the annular grooves 23 on both sides, which can reduce the friction force on the substrate 1 and also reduce the vibration of the substrate 1.

[0027] In an embodiment of the present invention, the abutting surface 111 extends along the first diagonal direction to ensure that when the substrate moves along the first diagonal direction, the abutting surface 111 can always abut the annular groove 23.

[0028] Refer to Figure 1 As shown, in an embodiment of the present invention, the side guide wheel assembly includes four guide wheels 22. Two guide wheels 22 are respectively arranged on both sides of the substrate 1 along the first diagonal direction to ensure that the forces on the front and rear sections on both sides of the substrate 1 are uniform during the movement process.

[0029] Refer to Figure 3 As shown, in an embodiment of the present invention, the rotation axis 27 of the guide wheel 22 is vertically arranged to ensure that the force exerted by the guide wheel 22 on the substrate 1 is always horizontal, preventing the substrate 1 from tilting.

[0030] Refer to Figure 1As shown, in an embodiment of the present invention, it further includes an adjusting assembly. The adjusting assembly includes a first adjusting plate 5 and a second adjusting plate 4 that are horizontally arranged. The first adjusting plate 5 is stacked on the second adjusting plate 4. The guide wheel frame 21 of the side guide wheel assembly 2 is connected to the first adjusting plate 5. The first adjusting plate 5 is provided with a first strip-shaped hole 51 extending longitudinally, and the second adjusting plate 4 is provided with a first screw hole. When locking the first adjusting plate 5, turn the fifth fixing member 52 to make it pass through the first strip-shaped hole 51 and connect to the first screw hole. When adjusting the position of the cutting assembly longitudinally, after loosening the fifth fixing member 52, push the first adjusting plate 5 longitudinally to the corresponding position. Adjusting the cutting assembly longitudinally can change the cutting position of the cutting assembly.

[0031] Referring to Figure 1 As shown, in an embodiment of the present invention, it further includes a driver 35 arranged on the first adjusting plate 5. The driver 35 drives the substrate 1 to move along the first diagonal direction, so that the saw blade 3 can automatically feed.

[0032] Referring to Figure 1 As shown, in an embodiment of the present invention, the driver 35 is preferably a hydraulic cylinder.

[0033] Referring to Figure 1 As shown, in an embodiment of the present invention, a cylinder seat 36 is provided on the first adjusting plate 5, and the driver 35 is arranged on the cylinder seat 36.

[0034] Referring to Figure 1 and Figure 4 As shown, in an embodiment of the present invention, it further includes a machine table 7 and support members 6 distributed on both sides of the machine table 7 along the longitudinal direction. Among them, the support member 6 includes a support plate 62 and a connecting plate 61 that are vertically connected. The connecting plate 61 is movably connected to the machine table 7, and the support plate 62 is vertically arranged and movably connected to the second adjusting plate 4. The support plate 62 is used to support the second adjusting plate 4 above the machine table 7, reducing the sliding wear between the second adjusting plate 4 and the machine table 7. The support member 6 has a low cost and can be quickly replaced.

[0035] Referring to Figure 1 As shown, in an embodiment of the present invention, the second adjusting plate 4 is provided with a second strip-shaped hole 41 extending transversely, and the top of the support plate 62 is provided with a second screw hole. When locking the second adjusting plate 4, the second fixing member 42 and the fourth fixing member 45 pass through the second strip-shaped hole 41 and connect to the second screw hole. When adjusting the position of the second adjusting plate 4 transversely, loosen the second fixing member 42 and the fourth fixing member 45, and push the second adjusting plate 4 to move transversely to the corresponding position. Adjusting the cutting assembly transversely can change the cutting depth of the cutting assembly.

[0036] Referring to Figure 1 andFigure 3 As shown, in an embodiment of the present invention, the connecting plate 61 is provided with a third strip-shaped hole 25 extending along the second diagonal direction, and the machine table 7 is provided with a third screw hole. When locking the side guide wheel assembly 2 on the substrate 1, the first fixing member 26 can be passed through the third strip-shaped hole 25 to connect the third screw hole; when adjusting the position of the side guide wheel assembly 2 along the second diagonal direction, loosen the first fixing member 26 and push the guide wheel frame 21 along the second diagonal direction to a predetermined position. Adjusting the position of the side guide wheel assembly 2 along the second diagonal direction can change the size of the gap between the abutting surface 111 and the annular groove 23, thereby adjusting the movement amount of the substrate 1.

[0037] Referring to Figure 1 As shown, in an embodiment of the present invention, the first diagonal direction, the second diagonal direction, the horizontal direction, and the vertical direction are all in the horizontal direction, and the horizontal direction is perpendicular to the vertical direction. The first diagonal direction and the second diagonal direction are both between the horizontal direction and the vertical direction, and the first diagonal direction and the second diagonal direction are symmetric about the horizontal direction.

[0038] Further, the included angles between the first diagonal direction and the horizontal direction, the vertical direction are both 45°, and the included angles between the second diagonal direction and the horizontal direction, the vertical direction are both 45°.

[0039] Referring to Figure 1 As shown, in an embodiment of the present invention, both ends of the support plate 62 on one side of the machine table 7 are provided with the second screw holes; one end of the support plate 63 on the other side of the machine table 7 is provided with the second screw hole, and the second screw hole is located at the end far from the object to be cut. That is, the second adjusting plate 4 is fixed on the two support members 6 through the second fixing member 42, the third fixing member 44, and the fourth fixing member 45. It can be understood that if the initial position of the cutting assembly is set as the origin of the plane coordinate, then both ends of the support plate 63 are located in the first quadrant and the second quadrant respectively, and one end located in the first quadrant is provided with the second screw hole; both ends of the support plate 62 are located in the third quadrant and the fourth quadrant respectively, and both ends located in the third quadrant and the fourth quadrant are provided with the second screw holes. When the cutting assembly moves from the origin to the second quadrant (i.e., along the first diagonal direction), the substrate 1 can move in the second quadrant without interference from the second fixing member 42, the third fixing member 44, and the fourth fixing member 45.

[0040] Referring to Figure 5 As shown, in an embodiment of the present invention, the guiding member 11 is provided as a circular tube 13. Circular tubes 13 are provided on both sides of the substrate 1 along the first diagonal direction. The circular tubes 13 are welded to the substrate 1. The circular tubes 13 extend along the first diagonal direction, and the circumferential side walls of the circular tubes 13 abut against the annular groove 23. The annular groove 23 is used to guide the circular tubes 13. The inside of the circular tubes 13 is hollow, which can reduce the cost and weight of the device.

[0041] Refer to Figure 1 Surround Figure 6 As shown, in an embodiment of the present invention, a vertical plate 12 is provided on the substrate 1, and the output end of the vertical plate 12 and the driver 35 are connected by a push plate 34.

[0042] Refer to Figure 1 And Figure 6 As shown, in an embodiment of the present invention, the cutting assembly includes a saw blade 3, a mounting seat 33 fixed on the substrate 1, a speed reducer 32 arranged on the mounting seat 33, and a saw blade driving motor 31 arranged on the substrate 1. The saw blade driving motor 31 drives the saw blade 3 to rotate at a high speed through the speed reducer 32.

[0043] Refer to Figure 5 As shown, in an embodiment of the present invention, the diameter of the circular tube 13 is greater than the thickness of the substrate 1. It can be understood that the center line of the circular tube 13 and the substrate 1 are in the same plane. Therefore, the peripheral side wall of the circular tube 13 is higher than the upper surface of the substrate 1. The peripheral side wall of the circular tube 13 blocks the debris falling on the substrate 1 to prevent the debris from spreading through vibration into the gap between the circular tube 13 and the annular groove 23.

[0044] Refer to Figure 7 As shown, in an embodiment of the present invention, the first adjusting plate 5 is provided with a handle 53, and the second adjusting plate 4 is provided with a handle 43. The handle 53 / 43 provides a relay point for the operator to facilitate the movement of the first adjusting plate 5 and the second adjusting plate 4.

[0045] Refer to Figure 7 As shown, in an embodiment of the present invention, the side guide wheel assembly further includes a guide wheel bearing 24 and a rotating shaft 27. The guide wheel 22 and the guide wheel bearing 24 are both sleeved on the rotating shaft 27, and the guide wheel bearing 24 is located between the rotating shaft 27 and the guide wheel 22.

[0046] In an embodiment of the present invention, the first fixing member 26, the second fixing member 42, the third fixing member 44, and the fourth fixing member 45 are preferably screws. Embodiment

[0047] Refer to Figure 8 And Figure 9As shown in the figure, a pair of cutting machines for used automobile tires is also provided, which includes two saw blade feeding devices, a tire lifting frame 82, and symmetrically arranged left cutting bodies 8 and right cutting bodies 81. The left cutting body 8 and the right cutting body 81 are used to clamp the tire 10 from both sides and rotate the tire 10 during the cutting process. The two saw blade feeding devices 9 / 91 are symmetrically arranged on the machine tables of the left cutting body 8 and the right cutting body 81. The tire lifting frame 82 is arranged directly below the space between the left cutting body 8 and the right cutting body 81, and is used to automatically lift the tire 10 to reduce the working intensity of the operator.

[0048] The working principle of the pair of cutting machines for used automobile tires according to the present invention is as follows: The operator places the tire 10 to be cut on the tire lifting frame 82, and uses the tire lifting frame 82 to lift the tire 10 to be cut to a height that can be clamped by the left cutting body 8 and the right cutting body 81. Then, the left cutting body 8 and the right cutting body 81 clamp the tire 10 to be cut from both sides. After adjusting the positions of the cutting components on both sides and locking them, the saw blade driving motor 31 drives the saw blade 3 to rotate at a high speed, and the driver 35 drives the saw blade 3 to feed along the first diagonal direction. The saw blade feeding device 9 starts to cut one side of the tire 10 to be cut, and the saw blade feeding device 91 starts to cut the other side of the tire 10 to be cut. At the same time, the left cutting body 8 and the right cutting body 81 rotate the tire 10 to ensure that the cutting point moves along the circumference of the tire 10, so as to realize the continuous and uniform cutting of the circumference of the tire 10 by the saw blade 3.

[0049] Obviously, the above embodiments are only examples for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A saw blade feeding device, characterized in that: include, A base plate, wherein guide members are provided on two horizontal sides along a first oblique direction, and the guide members are provided with abutting curved surfaces; A side guide wheel assembly, comprising a guide wheel frame and a plurality of guide wheels rotatably connected to the guide wheel frame, wherein the plurality of guide wheels are symmetrically arranged on both horizontal sides of the base plate along the first oblique direction, and the circumferential side walls of the guide wheels are provided with an annular groove extending along the circumference thereof, and the plurality of annular grooves abut against the abutting curved surface from both horizontal sides of the base plate along the first oblique direction, and the annular grooves and the abutting curved surface are profiled and matched; The cutting assembly is arranged on the base plate and is used for cutting the tire.

2. A saw blade feeding device according to claim 1, characterized in that: It also includes an adjustment component, which includes a first adjustment plate and a second adjustment plate arranged horizontally, the first adjustment plate is stacked on the second adjustment plate, the side guide wheel assembly is arranged on the first adjustment plate, the first adjustment plate is provided with a first strip hole extending in the longitudinal direction, the second adjustment plate is provided with a first screw hole, and a fixing member passes through the first strip hole and is connected to the first screw hole.

3. A saw blade feeding device according to claim 2, characterized in that: It also includes a machine platform and support members distributed on both sides of the machine platform along the longitudinal direction, the support members include a support plate and a connecting plate, the connecting plate is connected to the machine platform, and the support plate is vertically arranged and movably connected to the second adjustment plate.

4. A saw blade feeding device according to claim 3, characterized in that: The second adjustment plate is provided with a second strip hole extending in the transverse direction, the top of the support plate is provided with a second screw hole, and the fixing piece passes through the second strip hole and is connected to the second screw hole.

5. A saw blade feeding device according to claim 4, characterized in that: The second screw holes are arranged at both ends of the support plate located on one side of the machine; the second screw hole is arranged at one end of the support plate located on the other side of the machine, and the second screw hole is located at the end away from the object to be cut.

6. A saw blade feeding device according to claim 5, characterized in that: The connecting plate is provided with a third strip hole extending along the second oblique direction, the machine platform is provided with a third screw hole, and the fixing piece passes through the third strip hole and is connected to the third screw hole.

7. A saw blade feeding device according to claim 6, characterized in that: The first oblique direction, the second oblique direction, the transverse direction and the longitudinal direction are all horizontal directions, the transverse direction is perpendicular to the longitudinal direction, the first oblique direction and the second oblique direction are both between the transverse direction and the longitudinal direction, and the first oblique direction and the second oblique direction are symmetrical about the transverse direction.

8. A saw blade feeding device according to claim 1, characterized in that: The guide member is configured as a circular tube, the circular tube extends along the first oblique direction, and the peripheral side wall of the circular tube abuts against the annular groove.

9. A saw blade feeding device according to claim 1, characterized in that: The system further includes a driver, which drives the substrate to move along the first oblique direction.

10. A machine for cutting waste automobile tires, characterized in that: It includes the saw blade feeding device as described in any one of claims 1 to 8, and also includes a tire lifting frame, and a symmetrically arranged left cutting machine body and a right cutting machine body, wherein the saw blade feeding device is symmetrically arranged on the left cutting machine body and the right cutting machine body, and the tire lifting frame is arranged directly below the left cutting machine body and the right cutting machine body.

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