A tire cutting machine

Abstract

The present invention discloses a tire bead cutting machine, comprising a machine body, a positioning mechanism; the bead cutting mechanism comprises a first fixing member, a second fixing member, a first cutting knife, a second cutting knife and an inner ring fixing assembly; the first fixing member and the second fixing member are arranged at a relative interval, and the first fixing member can move toward or away from the second fixing member along its own axial direction; the inner ring fixing assembly is inserted into the second fixing member and pivotally connected to the machine body; the inner ring fixing assembly is used to insert the inner circumference of the inner ring of the tire and abut against the inner circumference of the inner ring of the tire when the positioning mechanism moves to the bead cutting station; the first fixing member is used to move toward the second fixing member when the tire is fixed on the inner ring fixing assembly so that the tire is clamped between the first fixing member and the second fixing member; the first cutting knife is installed on the machine body; the second cutting knife is installed on the machine body. The tire bead cutting machine of the present invention can separate the inner ring and outer ring of the tire.

Description

Technical Field

[0001] The invention relates to the technical field of tire recycling equipment, in particular to a tire bead cutting machine. Background Art

[0002] At present, with the progress of society and the development of economy, various vehicles have become indispensable consumables for people's life and work. Tires are indispensable parts of vehicles, so their mass production and application lead to waste of rubber raw materials. The existing practice is to recycle tires to avoid waste of resources. When recycling tires, it is necessary to cut off the inner ring with better rubber quality in the tire and separate it from the outer ring. Then move the inner ring to the inner ring and steel wire separation equipment for further processing, separate the rubber and steel wire of the inner ring and recycle them separately. The outer ring is moved to the outer ring processing equipment for strip cutting and block cutting to facilitate subsequent degradation and reuse.

[0003] However, the existing operation of separating the outer ring and the inner ring of the tire is mainly done manually, which not only has high work intensity, but also causes injuries to workers during the ring cutting process. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, an object of the present invention is to provide a tire ring cutting machine, which can separate the inner ring and the outer ring of a tire.

[0005] The purpose of the present invention is achieved by the following technical solutions:

[0006] A tire cutting machine, comprising:

[0007] The machine body is provided with a positioning station and a ring cutting station;

[0008] A positioning mechanism, which is installed at the positioning station and can move from the positioning station to the bead cutting station; the positioning mechanism is used to position the tire and drive the tire to move to the bead cutting station;

[0009] A ring cutting mechanism, the ring cutting mechanism is installed at the ring cutting station, and the ring cutting mechanism includes a first fixing member, a second fixing member, a first cutting knife, a second cutting knife and an inner ring fixing assembly; the first fixing member and the second fixing member are arranged relatively spaced apart, and the first fixing member can move along its own axial direction toward or away from the second fixing member; the inner ring fixing assembly is inserted into the second fixing member and is pivotally connected to the machine body; the inner ring fixing assembly is used to insert the inner periphery of the inner ring of the tire and abut against the inner periphery of the inner ring of the tire when the positioning mechanism moves to the ring cutting station; the first fixing member is used to move toward the second fixing member when the tire is fixed on the inner ring fixing assembly so that the tire is clamped between the first fixing member and the second fixing member; the first cutting knife is installed on the machine body and inserted between the outer periphery of the inner ring of the tire and the inner periphery of the outer ring when the first fixing member moves toward the second fixing member; the second cutting knife is installed on the machine body and inserted between the outer periphery of the inner ring of the tire and the inner periphery of the outer ring when the tire is fixed on the inner ring fixing assembly.

[0010] Preferably, the inner ring fixing assembly includes a fixed shaft, a driving rod, a plurality of fixed blocks and a driving member, the fixed shaft is pivotally connected to the machine body and passes through the interior of the second fixing member; the driving rod is movably connected to the fixed shaft and passes through the end of the fixed shaft; the driving rod extends out of the end of the fixed shaft to form a driving end; the driving member is used to drive the driving rod to move axially along the fixed shaft; the plurality of fixed blocks are distributed at intervals around the circumference of the axis of the fixed shaft; one end of the fixed block is hinged with a first connecting rod, and the other end of the fixed block is hinged with a second connecting rod; the end of the first connecting rod away from the fixed block is hinged to the driving end; the end of the second connecting rod away from the fixed block is hinged to the outer surface of the fixed shaft.

[0011] Preferably, the outer surface of the fixing block is formed as an arc surface for matching with the inner peripheral structure of the inner ring of the tire.

[0012] Preferably, a first fixing part driving mechanism is provided on the machine body, and the first fixing part driving mechanism is used to drive the first fixing part to move along its own axial direction; the first fixing part driving mechanism includes a first oil cylinder and a guide rail, and the cylinder body of the first oil cylinder is fixedly connected to the machine body; the piston rod of the first oil cylinder and the guide rail both extend along the axial direction of the first fixing part; the piston rod of the first oil cylinder is fixed with a mounting seat, and the first fixing part and the first cutting knife are both mounted on the mounting seat; the bottom end of the mounting seat is slidably matched with the guide rail.

[0013] Preferably, a first cutting knife driving mechanism is provided on the mounting seat, and the first cutting knife driving mechanism is used to drive the first cutting knife to move axially along the first fixing member, and is used to drive the first cutting knife to move radially along the first fixing member.

[0014] Preferably, a second fixing member driving mechanism is provided on the machine body, and the second fixing member driving mechanism is used to drive the second fixing member to move along its own axial direction; the second fixing member driving mechanism includes a plurality of second oil cylinders, and the cylinder bodies of the plurality of second oil cylinders are all fixed on the machine body and are distributed at intervals around the axis of the second fixing member; the piston rod of each second oil cylinder extends along the axial direction of the second fixing member and is fixed to the second fixing member.

[0015] Preferably, a second cutting knife driving mechanism is provided on the machine body, and the second cutting knife driving mechanism is used to drive the second cutting knife to move axially along the second fixing member, and is used to drive the second cutting knife to move radially along the second fixing member.

[0016] Preferably, the positioning mechanism includes a mounting plate, a positioning frame and a mounting plate driving mechanism; the positioning frame and the positioning frame driving mechanism are provided on the mounting plate; the interior of the positioning frame is formed with a positioning space for receiving a tire so that the tire is placed in a vertical state; a tire receiving port is provided at the end of the positioning frame away from the bead cutting station; a baffle is provided at the end of the positioning frame close to the bead cutting station to prevent the tire from rolling out; the positioning frame can move axially along the first fixing member or the second fixing member under the drive of the positioning frame driving mechanism; the mounting plate driving mechanism is used to drive the mounting plate to move from the positioning station to the bead cutting station.

[0017] Preferably, the machine body is provided with a tire conveying bucket, which includes a bottom plate and two side plates, wherein the two side plates are fixedly connected to both sides of the bottom plate; the bottom plate is inclined from top to bottom toward the positioning station; and the bottom end of the bottom plate is connected to the positioning station.

[0018] Preferably, the machine body is provided with an inner ring recovery chamber and an outer ring recovery chamber, the inner ring recovery chamber is located below the ring cutting station; the outer ring recovery chamber is connected to the end of the ring cutting station away from the positioning station.

[0019] Compared with the prior art, the beneficial effect of the present invention is that when cutting the tire, the tire can be positioned by the positioning mechanism first, and the tire after positioning can be moved to the cutting station under the drive of the positioning mechanism. At this time, the inner ring fixing assembly can be inserted into the inner periphery of the inner ring of the tire in the positioning mechanism and abut against the inner periphery of the inner ring of the tire, so that the inner ring of the tire can be fixed. After that, the positioning mechanism is reset, so that the first fixing member moves toward the second fixing member, and at the same time, the first cutting knife and the second cutting knife are inserted between the inner periphery of the outer ring of the tire and the outer periphery of the inner ring, and the inner ring fixing assembly is rotated, and the tire can start to rotate. During the rotation process, the first cutting knife and the second cutting knife can cut the inner ring and the outer ring to separate the two. In this way, the inner ring and the outer ring of the tire can be separated mechanically without manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the positioning mechanism of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the ring cutting mechanism of the present invention.

[0023] In the figure: 10, body; 11, tire conveying bucket; 111, bottom plate; 112, side plate; 12, inner ring recovery chamber; 13, outer ring recovery chamber; 20, positioning mechanism; 21, positioning frame; 211, tire receiving port; 212, baffle; 22, mounting plate; 23, rack; 30, ring cutting mechanism; 31, first fixing member; 32, second fixing member; 33, inner ring fixing assembly; 331, fixing block; 332, fixing shaft; 333, driving rod; 334, first connecting rod; 34, first cutting knife; 341, first cutting knife driving cylinder; 342, first cutting knife adjusting disk; 35, second cutting knife; 351, second cutting knife driving cylinder; 353, second cutting knife adjusting disk; 361, mounting seat; 362, first cylinder; 363, guide rail; 37, second cylinder. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0025] like Figure 1 , Figure 2 as well as Figure 3 The tire bead cutting machine shown in the figure includes a machine body 10, a positioning mechanism 20 and a bead cutting mechanism 30. The machine body 10 is provided with a positioning station and a bead cutting station. The positioning mechanism 20 is installed at the positioning station and can move from the positioning station to the bead cutting station. The positioning mechanism 20 is used to position the tire. When it moves from the positioning station to the bead cutting station, it can drive the tire in the positioning mechanism 20 to move from the positioning station to the bead cutting station.

[0026] Specifically, the ring cutting mechanism 30 is installed at the ring cutting station, and the ring cutting mechanism 30 includes a first fixing member 31, a second fixing member 32, a first cutting knife 34, a second cutting knife 35, and an inner ring fixing assembly 33; the first fixing member 31 and the second fixing member 32 are arranged on the machine body 10 at a relative interval. The first fixing member 31 can move toward or away from the second fixing member 32 along its own axial direction; the inner ring fixing assembly 33 is inserted into the second fixing member 32 and pivotally connected to the machine body 10; when the positioning mechanism 20 moves to the ring cutting station, the inner ring fixing assembly 33 can be inserted into the inner circumference of the inner ring of the tire and abut against the inner circumference of the inner ring of the tire, and the inner ring of the tire can be fixed on the inner ring fixing assembly 33. When the tire is fixed on the inner ring fixing assembly 33, the first fixing member 31 can move toward the second fixing member 32 so that the tire is clamped between the first fixing member 31 and the second fixing member 32.

[0027] In addition, the first cutting knife 34 is mounted on the machine body 10, and when the first fixing member 31 moves toward the second fixing member 32, the first cutting knife 34 can be inserted between the outer periphery of the inner ring of the tire and the inner periphery of the outer ring. Similarly, the second cutting knife 35 is mounted on the machine body 10, and when the tire is fixed on the inner ring fixing assembly 33, it is inserted between the outer periphery of the inner ring of the tire and the inner periphery of the outer ring.

[0028] Based on the above structure, when the tire bead cutting machine of the present invention is used, the tire to be cut can be positioned at the positioning mechanism 20 of the positioning station. After the positioning is completed, the positioning mechanism 20 drives the tire to move from the positioning station to the bead cutting station. At this time, the inner ring fixing assembly 33 can be inserted into the inner ring of the tire in the positioning mechanism 20 and abut against the inner circumference of the inner ring of the tire, so that the inner ring of the tire can be fixed. In this process, the second cutting knife 35 can be inserted between the inner circumference of the outer ring of the tire and the outer circumference of the inner ring. Thereafter, the positioning mechanism 20 is reset to prepare for the next tire positioning. The tire can be fixed on the inner ring fixing component 33, so that the first fixing member 31 moves toward the second fixing member 32, and the tire can be clamped between the first fixing member 31 and the second fixing member 32. At the same time, the first cutting knife 34 is also inserted between the inner periphery of the outer ring of the tire and the outer periphery of the inner ring. Then, the inner ring fixing component 33 is rotated, and the tire can start to rotate. During the rotation of the tire, the first cutting knife 34 and the second cutting knife 35 can cut the inner ring and the outer ring to separate the two. In this way, the inner ring and the outer ring of the tire can be separated mechanically without manual operation.

[0029] It should be noted that, in this embodiment, the fixing member can be selected as a fixing ring, so that the first fixing ring and the second fixing ring are both used to abut against the outer ring of the tire, and the inner ring fixing assembly 33 can pass through the inside of the fixing ring.

[0030] Preferably, in this embodiment, the inner ring fixing assembly 33 includes a fixed shaft 332, a driving rod 333, a plurality of fixed blocks 331 and a driving member, and the fixed shaft 332 is pivotally connected to the body 10 and passes through the interior of the second fixing member 32. The driving rod 333 is movably connected to the fixed shaft 332 and passes through the end of the fixed shaft 332, and the end of the driving rod 333 extending from the fixed shaft 332 forms a driving end, and the driving member is used to drive the driving rod 333 to move along the axial direction of the fixed shaft 332. In addition, the plurality of fixed blocks 331 are distributed at intervals around the axis of the fixed shaft 332, so that one end of the fixed block 331 is hinged with a first connecting rod 334, and the other end of the fixed block 331 is hinged with a second connecting rod; the end of the first connecting rod 334 away from the fixed block 331 is hinged to the driving end; the end of the second connecting rod away from the fixed block 331 is hinged to the outer surface of the fixed shaft 332.

[0031] On the basis of the above structure, when the inner ring is fixed, the positioning mechanism 20 drives the tire to move to the ring cutting station, and the above-mentioned fixed shaft 332 is connected to the inner periphery of the inner ring of the tire. After that, the driving member with the driving rod 333 retracts backward along the axis of the fixed shaft 332, that is, drives one end of the first connecting rod 334 backward. Since the other end of the first connecting rod 334 is hinged to one end of the fixed block 331, and the other end of the fixed block 331 is hinged to the second connecting rod hinged to the fixed shaft 332, when the first connecting rod 334 is pushed backward, the fixed block 331 cannot retreat due to the restriction of the second connecting rod, and can be opened outward under the action of the first connecting rod 334 and the second connecting rod, so as to abut against the inner periphery of the inner ring of the tire, so that the inner ring of the tire is stuck on multiple fixed blocks 331 to achieve fixation. The way of fixing by opening the fixed blocks 331 can make each part of the inner ring of the tire evenly stressed, so that the tire is evenly stressed during the rotation cutting process, and the cutting process is stable.

[0032] Of course, after the inner and outer rings of the tire are separated, the driving rod 333 can be pushed forward axially through the driving member. Under the linkage action of the first connecting rod 334 and the second connecting rod, the fixing block 331 can be closed toward the fixing shaft 332, and the inner ring of the tire loses its opening force and can be loosened and removed.

[0033] Furthermore, the outer surface of the fixing block 331 is formed into an arc surface for matching with the inner peripheral structure of the inner ring of the tire. When the fixing block 331 is opened outward, the arc surface can fit exactly with the inner ring of the tire, and the fixing effect is better.

[0034] It should be noted that the above-mentioned driving member can be realized by a cylinder in the prior art, which has a large and stable driving force. In addition, the driving mechanism for driving the fixed shaft 332 to rotate can be realized by a motor and a gear transmission. By installing the motor on the body 10, the rotating shaft of the motor extends along the axial direction of the fixed shaft 332, and the rotating shaft of the motor and the end of the fixed shaft 332 away from the driving end are connected by a gear mechanism, the rotating shaft of the motor can drive the fixed shaft 332 to rotate, and then drive the fixed shaft 332 synchronously connected thereto to rotate.

[0035] Preferably, a first fixing member 31 driving mechanism may also be provided on the machine body 10, and the first fixing member 31 driving mechanism is used to drive the first fixing member 31 to move along its own axial direction. Specifically, the first fixing member 31 driving mechanism includes a first oil cylinder 362 and a guide rail 363, and the cylinder body of the first oil cylinder 362 is fixed to the machine body 10, and the piston rod of the first oil cylinder 362 and the guide rail 363 both extend along the axial direction of the first fixing member 31; the piston rod of the first oil cylinder 362 is fixed with a mounting seat 361, and the first fixing member 31 is mounted on the mounting seat 361; the bottom end of the mounting seat 361 is slidably matched with the guide rail 363. In this way, when driving the first fixing member 31 to move, the first oil cylinder 362 can be started, and the expansion and contraction of the piston rod of the first oil cylinder 362 can drive the mounting seat 361 to move forward and backward along the guide rail 363, thereby driving the first fixing member 31 installed on the mounting seat 361 to move forward and backward, and realize movement toward or away from the second fixing member 32. At the same time, when the first fixing member 31 moves, the first cutting knife 34 also mounted on the mounting seat 361 can also move forward and backward therewith, that is, move toward or away from the second fixing member 32, and insert into the tire when moving toward the second fixing member 32.

[0036] Furthermore, a first cutting knife driving mechanism is provided on the mounting seat 361, and the first cutting knife driving mechanism is used to drive the first cutting knife 34 to move axially along the first fixing member 31, and to drive the first cutting knife 34 to move radially along the first fixing member 31. In this way, when the first cutting knife 34 moves toward the second fixing member 32, the first cutting knife 34 can further provide a driving force to drive the first cutting knife 34 to move axially along the first fixing member 31, penetrate into the interior of the tire, and cut more smoothly. In addition, the first cutting knife driving mechanism can also drive the first cutting knife 34 to move radially along the first fixing member 31, that is, the first cutting knife 34 is adjustable in the radial direction of the first fixing member 31, so as to facilitate the first cutting knife 34 to adjust the cutting angle between the inner ring and the outer ring of the tire, that is, accurately enter the boundary between the inner ring and the outer ring, so as to facilitate the first cutting knife 34 to better separate the inner ring and the outer ring.

[0037] Preferably, a second fixing member 32 driving mechanism may also be provided on the machine body 10, and the second fixing member 32 driving mechanism is used to drive the second fixing member 32 to move along its own axial direction. The second fixing member 32 driving mechanism includes a plurality of second oil cylinders 37, and the cylinder bodies of the plurality of second oil cylinders 37 are all fixed on the machine body 10 and are distributed at intervals around the axis of the second fixing member 32; the piston rod of each second oil cylinder 37 extends along the axial direction of the second fixing member 32 and is fixed to the second fixing member 32. In this way, the second fixing member 32 can be driven to move forward and backward along its own axis through the extension and contraction of each second cylinder 37. After the inner ring and outer ring of the tire are cut, the inner ring of the tire is still fixed on the inner ring fixing assembly 33, and each second cylinder 37 is started. Driven by the second cylinder 37, the second fixing member 32 can move toward the first fixing member 31, and the first fixing member 31 retreats, and the second fixing member 32 can push the outer ring out of the inner ring fixing assembly 33 forward, and the first fixing member 31 and the second fixing member 32 always clamp the outer ring, so that the inner ring and the outer ring can be automatically separated.

[0038] Preferably, a second cutting knife driving mechanism may also be provided on the body 10, and the second cutting knife driving mechanism is used to drive the second cutting knife 35 to move axially along the second fixing member 32, and to drive the second cutting knife 35 to move radially along the second fixing member 32. Similarly, in this way, during cutting, the second cutting knife 35 can be driven by the second cutting knife driving mechanism to move forward and be inserted into the tire. After the cutting is completed, when the second fixing member 32 moves toward the first fixing member 31, the second cutting knife 35 can be driven by the second cutting knife driving mechanism to withdraw from the inner ring and outer ring of the tire backward, so as to facilitate the pushing out of the outer ring. In addition, the second cutting knife driving mechanism can also drive the second cutting knife 35 to move radially along the first fixing member 31, that is, the second cutting knife 35 can be adjusted in the radial direction of the first fixing member 31, so as to facilitate the adjustment of the cutting angle of the second cutting knife 35 between the inner ring and the outer ring of the tire, that is, to accurately enter the boundary between the inner ring and the outer ring, so as to facilitate the second cutting knife 35 to better separate the inner ring and the outer ring.

[0039] It should be noted that the first cutting knife driving mechanism in this embodiment includes a first cutting knife driving cylinder 341, a first adjusting screw and a first cutting knife adjusting disk 342. An adjusting plate is provided on the mounting seat 361. The adjusting plate is fixedly connected to the first adjusting screw. The first adjusting screw is screwed on the mounting seat 361. The first cutting knife adjusting disk 342 can drive the first adjusting screw to rotate, so as to realize the radial movement of the first adjusting screw along the first fixing member 31. The cylinder body of the first cutting knife driving cylinder 341 is fixed on the adjusting plate, and the piston rod of the first cutting knife driving cylinder 341 is fixed to the first cutting knife 34. In this way, the first cutting knife driving cylinder 341 can drive the first cutting knife 34 to move forward and backward. In addition, the second cutting knife driving mechanism has the same structure as the first cutting knife driving mechanism, and also includes a second cutting knife driving cylinder 351, a second adjusting screw and a second cutting knife adjusting disk 353. The specific installation method and driving structure thereof refer to the description of the first cutting knife driving mechanism, and will not be repeated here.

[0040] Preferably, the positioning mechanism 20 comprises a mounting plate 22, a positioning frame 21 and a mounting plate driving mechanism. The mounting plate 22 is provided with a positioning frame 21 and a positioning frame driving mechanism. The interior of the positioning frame 21 is formed into a positioning space, and the positioning space can just receive the tire so that the tire is placed in a vertical state, that is, the tire is positioned. Specifically, a tire receiving port 211 is provided at the end of the positioning frame 21 away from the bead cutting station, and a baffle 212 is provided at the end of the positioning frame 21 close to the bead cutting station to prevent the tire from rolling out. The positioning frame 21 can move along the axial direction of the first fixing member 31 or the second fixing member 32 under the drive of the positioning frame driving mechanism; the mounting plate driving mechanism is used to drive the mounting plate 22 to move from the positioning station to the bead cutting station. In this way, when cutting the bead, the tire can be rolled into the positioning space from the tire receiving port 211, and the tire entering the positioning space can be placed in a vertical state. Thereafter, the mounting plate 22 can move toward the bead cutting station under the drive of the mounting plate driving mechanism, that is, the positioning frame 21 moves to the bead cutting station. During this process, the tire can be restricted by the baffle 212 to prevent it from rolling out of the end of the positioning frame 21. When the positioning frame 21 moves to the ring cutting station, the positioning frame driving mechanism can drive the positioning frame 21 to move toward the second fixing member 32, and the inner ring fixing component 33 extending from the second fixing member 32 can be inserted into the inner ring of the positioning frame 21 to fix the inner ring of the tire. After that, the positioning frame driving mechanism drives the positioning frame 21 to reset, and the mounting plate driving mechanism drives the mounting plate 22 to reset.

[0041] It should be noted that the mounting plate driving mechanism includes a motor, a gear and a rack 23, the rack 23 is fixed on the body 10 and extends from the positioning station to the ring cutting station, the gear is synchronously connected with the rotating shaft of the motor and fixed with the mounting plate 22, when the motor rotates, the gear meshes with the rack 23 and can drive the mounting plate 22 to move along the extension direction of the rack 23. The positioning frame driving mechanism can be realized by a pneumatic cylinder or an oil cylinder.

[0042] Of course, the positioning frame 21 in this embodiment can be formed by two four-frame frames fixed at an interval, and the four-frame frames are placed vertically. The tire can be placed vertically when it rolls into the interval between the two four-frame frames, and the above-mentioned baffle 212 can prevent it from rolling out.

[0043] Preferably, the machine body 10 is provided with a tire conveying bucket 11, which includes a bottom plate 111 and two side plates 112, the two side plates 112 are fixedly connected to the two sides of the bottom plate 111; the bottom plate 111 is inclined from top to bottom toward the positioning station; the bottom end of the bottom plate 111 is connected to the positioning station. In this way, the positioning frame 21 can be connected between the two side plates 112 of the tire conveying bucket 11. When conveying tires, the tires can be conveyed to the top of the tire conveying bucket 11 by the conveyor, and the tires are guided by the bottom plate 111 and rolled down into the positioning frame 21 for positioning.

[0044] Preferably, an inner ring recovery chamber 12 and an outer ring recovery chamber 13 may be provided on the machine body 10, wherein the inner ring recovery chamber 12 is located below the ring cutting station; and the outer ring recovery chamber 13 is connected to the end of the ring cutting station away from the positioning station. In this way, after the inner ring and outer ring cutting are completed, the inner ring of the tire can be directly loosened by the inner ring fixing assembly 33 and fall into the inner ring recovery chamber 12, while the outer ring can be moved to a position of the ring cutting station away from the inner ring recovery chamber 12 under the clamping action of the second fixing member 32 and the first fixing member 31, and then the first fixing member 31 and the second fixing member 32 release the outer ring, and the outer ring can roll to the outer ring recovery chamber 13 connected to the ring cutting station, so as to realize the separate recovery of the outer ring and the inner ring.

[0045] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A tire cutting machine, characterized in that: include, The machine body is provided with a positioning station and a ring cutting station; A positioning mechanism, which is installed at the positioning station and can move from the positioning station to the bead cutting station; the positioning mechanism is used to position the tire and drive the tire to move to the bead cutting station; A ring cutting mechanism, the ring cutting mechanism is installed at the ring cutting station, and the ring cutting mechanism includes a first fixing member, a second fixing member, a first cutting knife, a second cutting knife and an inner ring fixing assembly; the first fixing member and the second fixing member are arranged at a relative interval, and the first fixing member can move toward or away from the second fixing member along its own axial direction; the inner ring fixing assembly is inserted into the second fixing member and is pivotally connected to the machine body; the inner ring fixing assembly is used to insert the inner periphery of the inner ring of the tire and abut against the inner periphery of the inner ring of the tire when the positioning mechanism moves to the ring cutting station; the first fixing member is used to move toward the second fixing member when the tire is fixed on the inner ring fixing assembly so that the tire is clamped between the first fixing member and the second fixing member; the first cutting knife is installed on the machine body and inserted between the outer periphery of the inner ring of the tire and the inner periphery of the outer ring when the first fixing member moves toward the second fixing member; the second cutting knife is installed on the machine body and inserted between the outer periphery of the inner ring of the tire and the inner periphery of the outer ring when the tire is fixed on the inner ring fixing assembly; The inner ring fixing assembly includes a fixed shaft, a driving rod, a plurality of fixed blocks and a driving member, wherein the fixed shaft is pivotally connected to the machine body and passes through the inside of the second fixing member; the driving rod is movably connected to the fixed shaft and passes through the end of the fixed shaft; the end of the driving rod extending out of the fixed shaft forms a driving end; the driving member is used to drive the driving rod to move axially along the fixed shaft; the plurality of fixed blocks are distributed at intervals around the circumference of the axis of the fixed shaft; one end of the fixed block is hinged with a first connecting rod, and the other end of the fixed block is hinged with a second connecting rod; the end of the first connecting rod away from the fixed block is hinged to the driving end; the end of the second connecting rod away from the fixed block is hinged to the outer surface of the fixed shaft; The outer surface of the fixing block is formed into an arc surface for matching with the inner peripheral structure of the inner ring of the tire; The positioning mechanism includes a mounting plate, a positioning frame and a mounting plate driving mechanism. The mounting plate is provided with the positioning frame and the positioning frame driving mechanism. The interior of the positioning frame is formed with a positioning space for receiving a tire so that the tire is placed in a vertical state. A tire receiving port is provided at the end of the positioning frame away from the bead cutting station. A baffle is provided at the end of the positioning frame close to the bead cutting station to prevent the tire from rolling out. The positioning frame can move axially along the first fixing member or the second fixing member under the drive of the positioning frame driving mechanism. The mounting plate driving mechanism is used to drive the mounting plate to move from the positioning station to the bead cutting station.

2. The tire cutting machine according to claim 1, characterized in that: A first fixing part driving mechanism is provided on the machine body, and the first fixing part driving mechanism is used to drive the first fixing part to move along its own axial direction; the first fixing part driving mechanism includes a first oil cylinder and a guide rail, and the cylinder body of the first oil cylinder is fixedly connected to the machine body; the piston rod of the first oil cylinder and the guide rail both extend along the axial direction of the first fixing part; the piston rod of the first oil cylinder is fixed with a mounting seat, and the first fixing part and the first cutting knife are both mounted on the mounting seat; the bottom end of the mounting seat is slidably matched with the guide rail.

3. The tire cutting machine according to claim 2, characterized in that: The mounting seat is provided with a first cutting knife driving mechanism, which is used to drive the first cutting knife to move axially along the first fixing member, and is used to drive the first cutting knife to move radially along the first fixing member.

4. The tire cutting machine according to claim 1, characterized in that: A second fixing member driving mechanism is provided on the machine body, and the second fixing member driving mechanism is used to drive the second fixing member to move along its own axial direction; the second fixing member driving mechanism includes multiple second oil cylinders, and the cylinder bodies of the multiple second oil cylinders are all fixed on the machine body and distributed at intervals around the axis of the second fixing member; the piston rod of each second oil cylinder extends along the axial direction of the second fixing member and is fixed to the second fixing member.

5. The tire cutting machine according to claim 4, characterized in that: The machine body is provided with a second cutting knife driving mechanism, which is used to drive the second cutting knife to move axially along the second fixing member, and is used to drive the second cutting knife to move radially along the second fixing member.

6. The tire cutting machine according to claim 1, characterized in that: The machine body is provided with a tire conveying bucket, which includes a bottom plate and two side plates, wherein the two side plates are fixedly connected to both sides of the bottom plate; the bottom plate is inclined from top to bottom toward the positioning station; and the bottom end of the bottom plate is connected to the positioning station.

7. The tire cutting machine according to claim 1, characterized in that: The machine body is provided with an inner ring recovery chamber and an outer ring recovery chamber, wherein the inner ring recovery chamber is located below the ring cutting station; and the outer ring recovery chamber is connected to the end of the ring cutting station away from the positioning station.

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