Grinding equipment and method for tire machining

Abstract

The invention relates to the field of tire machining, in particular to grinding equipment and method for tire machining. The device comprises an operation frame, an outer circumference positioning assembly, an inner circumference positioning assembly and a grinding assembly. A horizontally-moving mounting plate I is arranged on one side of the operating frame, and a horizontally-moving mounting plate II is arranged on the other side of the operating frame; the peripheral positioning assembly is positioned on the mounting plate I, and peripheral positioning ends I of the peripheral positioning assembly are arranged up and down; the inner circumference positioning assembly is located on the second mounting plate, and the inner circumference positioning ends and the outer circumference positioning ends of the inner circumference positioning assembly are matched in a one-to-one correspondence mode; two groups of grinding assemblies are arranged, and each group of grinding assembly comprises a detachable inner periphery grinding piece and a detachable outer periphery grinding piece; the inner periphery grinding piece and the outer periphery grinding piece form a closed U-shaped grinding cavity with the adjustable size. The detachable inner periphery grinding piece and the detachable outer periphery grinding piece are arranged to be matched to form a closed U-shaped grinding cavity with the adjustable size, and therefore tire grinding is comprehensive, flexible, efficient and accurate.

Description

Technical Field

[0001] The invention relates to the field of tire processing, and in particular to a grinding device and method for tire processing. Background Art

[0002] Tires are ground during processing mainly for the following reasons:

[0003] Removing defects: During the production process of tires, there may be some defects on their surface, such as bubbles, cracks, impurities, etc. Through grinding, these defects can be removed and the flatness of the tire surface can be improved, thereby ensuring the quality and performance of the tire.

[0004] Optimize tread design: The tread design of a tire is crucial to its grip, wear resistance, driving stability and other performance. Through grinding, the tread can be finely processed to make it more in line with the design requirements, thereby improving the overall performance of the tire.

[0005] Matching road surface materials: Different road surface materials cause different degrees of wear on tires. By grinding the tire surface, its hardness and roughness can be adjusted to better adapt to different road conditions and reduce tire wear and loss.

[0006] Enhanced grip: The surface of the tire after grinding can form finer textures, increasing the friction between the tire and the road, thereby improving the tire's grip and driving stability.

[0007] The Chinese patent document with the authorization announcement number CN219767628U relates to a tire sidewall grinding device, including a sliding base, on which a mobile box is arranged. The utility model designs components such as a tire rotating device, a button box, a dust removal device, a grinding cutter head, a tire and a mobile box. The tire is placed on the tire rotating device, and the button and the knob on it are pressed to start the dust removal device, the tire rotating device and the grinding cutter head. According to different specifications of tires, the mobile box is controlled to drive the cutter holder to move to a suitable grinding position for grinding.

[0008] Existing tire grinding technology mainly performs local processing on the outer circumference of the tire, and cannot process the inside of the tire. However, during the production process of the tire, there may be some defects on the inner and outer surfaces, such as bubbles, cracks, impurities, etc. In addition, there is also the problem of insufficient adjustability of the grinding position and range. Ultimately, the tire grinding is incomplete, inflexible, inefficient and inaccurate, which in turn reduces the quality and performance of the tire. Summary of the invention

[0009] In view of the problems existing in the background technology, a grinding device and method for tire processing are proposed. The present invention arranges a detachable inner grinding part and an outer grinding part to cooperate to form a closed and size-adjustable U-shaped grinding chamber, so that the tire grinding is comprehensive, flexible, efficient and precise.

[0010] The present invention proposes a grinding device for tire processing, including an operating frame, an outer peripheral positioning assembly, an inner peripheral positioning assembly and a grinding assembly. A horizontally movable mounting plate 1 is arranged on one side of the operating frame, and a horizontally movable mounting plate 2 is arranged on the other side; the mounting plate 1 and the mounting plate 2 are parallel and opposite to each other; the outer peripheral positioning assembly is located on the mounting plate 1, and its outer peripheral positioning ends are arranged one above and one below, and are driven to rotate synchronously by rotating on the outer periphery of the tire; the inner peripheral positioning assembly is located on the mounting plate 2, and its inner peripheral positioning ends are matched with the outer peripheral positioning ends one by one, and are driven to rotate synchronously by rotating on the inner periphery of the tire; two groups of grinding assemblies are arranged, one in front and one behind, and are located between the mounting plate 1 and the mounting plate 2, and each group of grinding assemblies includes a detachable inner peripheral grinding part and an outer peripheral grinding part; the inner peripheral grinding part and the outer peripheral grinding part form a closed and size-adjustable U-shaped grinding chamber.

[0011] Preferably, driving members are provided on both mounting plate 1 and mounting plate 2; two sets of driving members are detachably connected to the inner grinding member and the outer grinding member, and drive the inner grinding member and the outer grinding member to move horizontally, so as to achieve the purpose of adjusting the spacing.

[0012] Preferably, the peripheral grinding member includes two groups of external grinding frames; the two groups of external grinding frames are movable double-layer U-shaped structures, stacked one on top of the other, and the two groups of horizontal sections are set to be slidingly connected to adjust the grinding width, and the two groups of vertical sections on different sides are respectively rotatably connected to the mounting platform one, and are connected to the driving member on the corresponding side through the mounting platform one, and the remaining two groups of vertical sections on different sides are suspended in the air to adjust the grinding angle; an external grinding knife is set on the inner wall of the double-layer U-shaped structure.

[0013] Preferably, the inner grinding member includes two groups of inner grinding frames; the two groups of inner grinding frames are movable double-layer U-shaped structures, stacked one above the other, and the two groups of horizontal sections are set to be slidingly connected to adjust the grinding width, and the two groups of vertical sections on different sides are respectively rotatably connected to the mounting platform two, and are connected to the driving member on the corresponding side through the mounting platform two, and the remaining two groups of vertical sections on different sides are suspended in the air to adjust the grinding angle; an inner grinding knife is set on the outer side wall of the double-layer U-shaped structure.

[0014] Preferably, each group of driving parts includes a screw that is rotatably connected to mounting plate one or mounting plate two; two groups of sliders that are threadedly connected to the screw and move in opposite directions are respectively provided at both ends of each group of screws; a rotating mounting seat is provided on both groups of sliders; mounting platform one and mounting platform two are respectively detachably connected to the corresponding mounting seats.

[0015] Preferably, a friction enhancement strip is provided on a side of the outer grinding frame away from the outer grinding knife; and teeth are provided on the friction enhancement strip.

[0016] The peripheral positioning assembly includes a double-headed, bidirectional cylinder located behind a mounting plate; the upper and lower telescopic ends of the double-headed, bidirectional cylinder are respectively connected to bending rods; the bending rod passes through a through slot on the mounting plate and extends to the front of the mounting plate, and the end is connected to a positioning tube through a rotating telescopic joint; the positioning tube is the peripheral positioning end.

[0017] Preferably, the inner circumference positioning assembly includes a horizontal T-frame that moves horizontally in front of the second mounting plate; the second double-headed bidirectional cylinder is located on the vertical section of the horizontal T-frame, and mounting brackets are symmetrically arranged on the upper and lower telescopic ends; the second positioning cylinder is the inner circumference positioning end, which is rotatably arranged on the mounting bracket.

[0018] Preferably, the second positioning tube has a built-in exhaust vacuum cleaner, and ventilation holes and polished protrusions are staggeredly arranged on the outer wall; the first positioning tube and the second positioning tube have the same structure.

[0019] The present invention also proposes a grinding method for tire processing, using the above-mentioned grinding equipment for tire processing, the steps are as follows: open the U-shaped grinding cavity to connect one side of the mounting plate 2, open the distance between the mounting plate 1 and the mounting plate 2 and the distance between the inner grinding piece and the outer grinding piece; bring the tire close to the mounting plate 2, and extend the inner positioning components up and down into the inner periphery of the tire to fix it; the mounting plate 1 and the mounting plate 2 are close; the tire extends between the inner grinding piece and the outer grinding piece, and the inner grinding piece and the outer grinding piece are close to form a U-shaped grinding cavity matching the tire; seal the U-shaped grinding cavity, and at the same time, the outer positioning component fixes the tire from the periphery; the outer positioning component and the inner grinding piece synchronously drive the tire to rotate; the inner grinding piece and the outer grinding piece grind the inside and outside of the rotating tire. During the grinding process, the width of the U-shaped grinding cavity is adjusted by moving the mounting plate 1 and the mounting plate 2.

[0020] Compared with the prior art, the present invention has the following beneficial technical effects: a detachable inner peripheral grinding piece and an outer peripheral grinding piece are arranged to cooperate to form a closed U-shaped grinding chamber with adjustable size. The inner grinding knife and the outer grinding knife not only grind the inside and outside of the rotating tire synchronously, but also can drive the inner and outer double-layer U-shaped structures to deform through the movement of mounting plate 1 and mounting plate 2 and the rotation of the inner grinding frame and the outer grinding frame, thereby adjusting the grinding position and range. The tire grinding is comprehensive, flexible, efficient and precise. The outer peripheral positioning assembly and the inner peripheral positioning assembly are arranged to cooperate, on the one hand, through the movement and rotation of positioning cylinder 1 and positioning cylinder 2, respectively support the tire from the inside and outside and drive it to rotate, and on the other hand, clean and collect the grinding debris on the inner and outer peripheries of the tire. Not only does it improve the effect of tire grinding, but it also reduces the cleaning workload of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of the grinding equipment for tire processing in the present invention (viewing angle 1);

[0022] Figure 2 Schematic diagram of the structure of the grinding equipment for tire processing in the present invention (viewing angle 2);

[0023] Figure 3 It is a disassembled schematic diagram of the grinding equipment for tire processing in the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the grinding assembly in the present invention;

[0025] Figure 5 It is a schematic diagram of the disassembly of the grinding assembly in the present invention;

[0026] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0027] Figure 7 for Figure 4 Enlarged view of point B in the middle;

[0028] Figure 8 It is a schematic diagram of the structure of the peripheral positioning component in the present invention;

[0029] Fig. 9 It is a structural schematic diagram of the inner periphery positioning component in the present invention;

[0030] Fig.10 for Fig. 9 Enlarged view of center C.

[0031] Reference numerals: 1, operating frame; 2, mounting plate 1; 3, mounting plate 2; 4, grinding assembly; 401, outer peripheral grinding piece; 40101, mounting platform 1; 40102, outer grinding frame; 40103, guide rod 1; 40104, outer grinding knife; 40105, friction enhancement strip; 40106, tooth; 402, inner peripheral grinding piece; 40201, mounting platform 2; 40202, inner grinding frame; 40203, guide rod 2; 40204, inner grinding knife; 403, Driving part; 40301, slider; 40302, mounting seat; 40303, lead screw; 5, peripheral positioning assembly; 501, double-headed bidirectional cylinder one; 502, rotary expansion joint; 503, positioning cylinder one; 504, bending rod; 6, inner peripheral positioning assembly; 601, cylinder four; 602, T-frame; 603, double-headed bidirectional cylinder two; 604, positioning cylinder two; 605, ventilation hole; 606, polishing protrusion; 607, mounting bracket; 7, cylinder one; 8, cylinder two. DETAILED DESCRIPTION

[0032] Embodiment 1, as Figure 1-Figure 3As shown, a grinding device for tire processing proposed by the present invention comprises an operating frame 1, an outer peripheral positioning assembly 5, an inner peripheral positioning assembly 6 and a grinding assembly 4. A mounting plate 2 driven to move horizontally by a cylinder 7 is arranged on one side of the operating frame 1, and a mounting plate 3 driven to move horizontally by a cylinder 8 is arranged on the other side; the mounting plate 2 and the mounting plate 3 are parallel and opposite to each other; the outer peripheral positioning assembly 5 is located on the mounting plate 2, and its outer peripheral positioning ends are arranged one above and one below, and are driven to rotate synchronously by rotating around the outer periphery of the tire; the inner peripheral positioning assembly 6 is located on the mounting plate 23, and its inner peripheral positioning ends are matched with the outer peripheral positioning ends one by one, and are driven to rotate synchronously by rotating around the inner periphery of the tire; the grinding assembly 4 is arranged in two groups, one in front and one behind, and is located between the mounting plate 2 and the mounting plate 3, and each group of grinding assemblies 4 includes a detachable inner peripheral grinding piece 402 and an outer peripheral grinding piece 401; the inner peripheral grinding piece 402 and the outer peripheral grinding piece 401 form a closed and size-adjustable U-shaped grinding chamber.

[0033] like Figure 4 As shown, driving members 403 are provided on both mounting plate 1 2 and mounting plate 2 3; two sets of driving members 403 are detachably connected to the inner grinding member 402 and the outer grinding member 401, and drive the inner grinding member 402 and the outer grinding member 401 to move horizontally, so as to achieve the purpose of adjusting the spacing, so that the spacing between the inner grinding member 402 and the outer grinding member 401 matches the tire thickness, thereby controlling the grinding effect.

[0034] like Figure 5-Figure 6 As shown, the peripheral grinding member 401 includes two groups of external grinding frames 40102; the two groups of external grinding frames 40102 are movable double-layer U-shaped structures, stacked one on top of the other, and the two groups of horizontal sections are set to be slidingly connected to adjust the grinding width, and the two groups of vertical sections on different sides are respectively rotatably connected to the mounting table 1 40101, and are connected to the driving member 403 on the corresponding side through the mounting table 1 40101, and the remaining two groups of vertical sections on different sides are suspended in the air to adjust the grinding angle; an external grinding knife 40104 is set on the inner wall of the double-layer U-shaped structure.

[0035] It should be further explained that a through slot is arranged on the horizontal section of the outer grinding frame 40102, and a guide rod 40103 is arranged in the through slot; the guide rod 40103 passes through the through slots of the two sets of outer grinding frames 40102 and is slidably connected to the slot wall.

[0036] It should be further explained that a motor 1 is provided on the mounting table 40101 to drive the outer grinding frame 40102 to rotate.

[0037] It should be further explained that the external grinding knife 40104 is configured as a U-shaped structure matching the external grinding frame 40102, and multiple layers are arranged in parallel.

[0038] During grinding, the outer grinding width can be adjusted by horizontally moving the two sets of outer grinding frames 40102. The outer grinding angle can be adjusted by rotating the two sets of outer grinding frames 40102.

[0039] like Figure 5-Figure 6 As shown, the inner grinding member 402 includes two groups of inner grinding frames 40202; the two groups of inner grinding frames 40202 are movable double-layer U-shaped structures, stacked one above the other, and the two groups of horizontal sections are set to be slidingly connected to adjust the grinding width, and the two groups of vertical sections on different sides are respectively rotatably connected to the second mounting platform 40201, and are connected to the driving member 403 on the corresponding side through the second mounting platform 40201, and the remaining two groups of vertical sections on different sides are suspended in the air to adjust the grinding angle; an inner grinding knife 40204 is set on the outer side wall of the double-layer U-shaped structure.

[0040] It should be further explained that a through slot is arranged on the horizontal section of the inner grinding frame 40202, and a second guide rod 40203 is arranged in the through slot; the second guide rod 40203 passes through the through slots of the two sets of inner grinding frames 40202 and is slidably connected to the slot wall.

[0041] It should be further explained that a second motor for driving the inner grinding frame 40202 to rotate is arranged on the second mounting platform 40201 .

[0042] It should be further explained that the inner grinding knife 40204 is configured as a U-shaped structure matching the inner grinding frame 40202, and multiple layers are arranged in parallel.

[0043] During grinding, the inner grinding width can be adjusted by horizontally moving the two sets of inner grinding frames 40202. The inner grinding angle can be adjusted by rotating the two sets of inner grinding frames 40202.

[0044] like Figure 5 As shown, each group of driving parts 403 includes a lead screw 40303 driven by motor three and rotatably connected to mounting plate one 2 or mounting plate two 3; two ends of each group of lead screws 40303 are respectively provided with two groups of sliders 40301 threadedly connected thereto and moving in opposite directions; both groups of sliders 40301 are provided with mounting seats 40302 driven to rotate by motor four; mounting platform one 40101 and mounting platform two 40201 are respectively detachably connected to corresponding mounting seats 40302.

[0045] It should be further explained that a reverse thread is provided on the lead screw 40303 to drive the two sets of sliders 40301 to move in reverse directions, thereby adjusting the distance between the inner grinding member 402 and the outer grinding member 401 to match the tire thickness.

[0046] It should be further explained that mounting holes are provided on both mounting platform 1 40101 and mounting platform 2 40201, which can be fixed to corresponding mounting seats 40302 by screws, so as to facilitate the installation and removal of tires.

[0047] Since the mounting seat 40302 is rotatable, the inner grinding piece 402 or the outer grinding piece 401 can be driven to flip.

[0048] like Figure 7 As shown, a friction enhancement strip 40105 is provided on the side of the outer grinding frame 40102 away from the outer grinding knife 40104 ; and teeth 40106 are provided on the friction enhancement strip 40105 .

[0049] When the mounting seat 40302 is rotatable, the inner grinding piece 402 or the outer grinding piece 401 can be driven to flip. The inner grinding piece 402 flips away from the tire, and the outer grinding piece 401 flips close to the tire. The friction enhancement strip 40105 acts on the outer periphery of the tire, and increases the friction between the tire and the road surface by forming small textures on the tire surface, thereby improving the tire's grip and driving stability. It can also be used to detect the hardness and wear resistance of the tire. By sliding and rotating the outer grinding knife 40104, the position and shape of the texture can be further adjusted.

[0050] like Figure 8 As shown, the peripheral positioning assembly 5 includes a double-headed bidirectional cylinder 501 located behind the mounting plate 2; the upper and lower telescopic ends of the double-headed bidirectional cylinder 501 are respectively connected to a bending rod 504; the bending rod 504 passes through the through slot on the mounting plate 2 and extends to the front of the mounting plate 2, and the end is connected to the positioning cylinder 503 through a rotating telescopic joint 502; the positioning cylinder 503 is the peripheral positioning end.

[0051] It should be further explained that the rotary telescopic joint 502 is composed of a cylinder three and a motor five, which are used to drive the positioning cylinder one 503 to move and rotate.

[0052] The positioning cylinder 503 is moved horizontally and up and down to be close to the outer periphery of the tire. The positioning cylinder 503 is rotated to drive the tire to rotate.

[0053] like Fig. 9 As shown, the inner circumference positioning assembly 6 includes a horizontal T-frame 602 driven by a cylinder four 601 and moved horizontally in front of the mounting plate two 3; a double-headed bidirectional cylinder two 603 is located on the vertical section of the horizontal T-frame 602, and mounting brackets 607 are symmetrically arranged on the upper and lower telescopic ends; the positioning cylinder two 604 is the inner circumference positioning end, which is driven by a motor six and rotatably arranged on the mounting bracket 607.

[0054] It should be further explained that an open semi-columnar groove is provided on the mounting bracket 607 for the second positioning tube 604 to be installed.

[0055] By horizontally moving the transverse T-shaped frame 602, the mounting bracket 607 moves up and down, and the second positioning cylinder 604 moves synchronously to fit the inner circumference of the tire. By rotating the second positioning cylinder 604, the tire is driven to rotate.

[0056] like Fig.10 As shown, the second positioning tube 604 has a built-in exhaust dust collector, and the outer wall is staggered with ventilation holes 605 and polished protrusions 606. The first positioning tube 503 and the second positioning tube 604 have the same structure.

[0057] When the positioning cylinder 1 503 and the positioning cylinder 2 604 rotate to support the tire and drive it to rotate, the grinding protrusion 606 can further grind the tread. The grinding debris on the inner and outer peripheries of the tire enters the positioning cylinder 1 503 and the positioning cylinder 2 604 through the ventilation holes 605.

[0058] Embodiment 2: This embodiment proposes a grinding method for tire processing, using the tire grinding equipment described in Embodiment 1, and the steps are as follows:

[0059] S1, remove the mounting seat 40302 near the mounting plate 2 3, and open one side of the U-shaped grinding chamber;

[0060] S2, increasing the distance between the mounting plate 1 2 and the mounting plate 2 3 and the distance between the inner grinding member 402 and the outer grinding member 401;

[0061] S3, place the tire close to the second mounting plate 3, move the horizontal T-shaped frame 602 horizontally, move the mounting bracket 607 up and down, and move the second positioning cylinder 604 synchronously to fit the inner circumference of the tire, and extend it into the inner circumference of the tire up and down to fix it;

[0062] S3, the mounting plate 1 2 and the mounting plate 2 3 are close to each other; the tire extends between the inner grinding member 402 and the outer grinding member 401, and the inner grinding member 402 and the outer grinding member 401 are close to each other to form a U-shaped grinding cavity matching the tire; wherein the inner grinding knife 40204 is close to the inner periphery of the tire, and the outer grinding knife 40104 is close to the outer periphery of the tire;

[0063] S4, connecting the mounting seat 40302 on the suspended side to the corresponding inner grinding member 402 and outer grinding member 401 respectively, and sealing the U-shaped grinding cavity;

[0064] S5, the positioning cylinder 503 is moved horizontally and vertically to be close to the outer periphery of the tire to fix the tire;

[0065] S6, the positioning cylinder 1 503 and the positioning cylinder 2 604 synchronously drive the tire to rotate;

[0066] S7, the inner grinding knife 40204 and the outer grinding knife 40104 grind the inner and outer sides of the rotating tire; the grinding protrusion 606 can further grind the tread;

[0067] S8, by moving the mounting plate 1 2 and the mounting plate 2 3 and rotating the inner grinding frame 40202 and the outer grinding frame 40102, the inner and outer double-layer U-shaped structures are deformed to adjust the grinding position and range;

[0068] S9, the mounting seat 40302 rotates, driving the inner grinding piece 402 to flip away from the tire, and the outer grinding piece 401 to flip close to the tire; the friction enhancement strip 40105 acts on the outer periphery of the tire to form small textures on the tire surface;

[0069] S10, grinding debris on the inner and outer peripheries of the tire enters the positioning cylinder 1 503 and the positioning cylinder 2 604 through the ventilation hole 605.

[0070] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A grinding device for tire processing, characterized in that: include: An operating frame (1), wherein a horizontally movable mounting plate 1 (2) is arranged on one side of the operating frame (1), and a horizontally movable mounting plate 2 (3) is arranged on the other side; the mounting plate 1 (2) and the mounting plate 2 (3) are located parallel and opposite to each other; The peripheral positioning assembly (5) is located on the mounting plate (2), and its peripheral positioning ends are arranged one above the other and one below the other, and rotate around the periphery of the tire to drive the tire to rotate synchronously; An inner periphery positioning assembly (6), the inner periphery positioning assembly (6) is located on the second mounting plate (3), the inner periphery positioning end thereof is matched with the outer periphery positioning end in a one-to-one manner, and is driven to rotate synchronously by rotating on the inner periphery of the tire; And a grinding assembly (4), wherein two groups of grinding assemblies (4) are arranged, one in front and one in the back, between the first mounting plate (2) and the second mounting plate (3), each group of grinding assemblies (4) comprises a detachable inner peripheral grinding piece (402) and an outer peripheral grinding piece (401); the inner peripheral grinding piece (402) and the outer peripheral grinding piece (401) form a closed U-shaped grinding chamber with adjustable size.

2. The tire grinding equipment according to claim 1, characterized in that: The first mounting plate (2) and the second mounting plate (3) are both provided with driving members (403); the two groups of driving members (403) are detachably connected to the inner peripheral grinding member (402) and the outer peripheral grinding member (401), and drive the inner peripheral grinding member (402) and the outer peripheral grinding member (401) to move horizontally, so as to achieve the purpose of adjusting the spacing.

3. The tire grinding equipment according to claim 2, characterized in that: The peripheral grinding member (401) comprises two groups of external grinding frames (40102); the two groups of external grinding frames (40102) are movable double-layer U-shaped structures, stacked one on top of the other, and the two groups of horizontal sections are arranged to be slidably connected to adjust the grinding width, and the two groups of vertical sections on different sides are respectively rotatably connected to the mounting platform (40101) and connected to the driving member (403) on the corresponding side through the mounting platform (40101), and the remaining two groups of vertical sections on different sides are suspended in the air to adjust the grinding angle; an external grinding knife (40104) is arranged on the inner side wall of the double-layer U-shaped structure.

4. The tire grinding equipment according to claim 3, characterized in that: The inner grinding member (402) comprises two groups of inner grinding frames (40202); the two groups of inner grinding frames (40202) are movable double-layer U-shaped structures, stacked one on top of the other, and the two groups of horizontal sections are arranged to be slidably connected to adjust the grinding width, and the two groups of vertical sections on different sides are respectively rotatably connected to the second mounting platform (40201), and are connected to the driving member (403) on the corresponding side through the second mounting platform (40201), and the remaining two groups of vertical sections on different sides are suspended in the air to adjust the grinding angle; an inner grinding knife (40204) is arranged on the outer side wall of the double-layer U-shaped structure.

5. The tire grinding equipment according to claim 4, characterized in that: Each set of driving members (403) comprises a lead screw (40303) rotatably connected to the first mounting plate (2) or the second mounting plate (3); two sets of sliders (40301) threadedly connected thereto and moving in opposite directions are respectively arranged at both ends of each set of lead screws (40303); a rotatable mounting seat (40302) is arranged on both sets of sliders (40301); the first mounting platform (40101) and the second mounting platform (40201) are respectively detachably connected to the corresponding mounting seats (40302).

6. The tire processing grinding machine according to claim 5, characterized in that: A friction enhancement strip (40105) is provided on a side of the outer grinding frame (40102) away from the outer grinding knife (40104); Teeth (40106) are provided on the friction enhancement strip (40105).

7. The tire grinding equipment according to claim 1, characterized in that: The peripheral positioning assembly (5) comprises a double-headed bidirectional cylinder (501) located behind the mounting plate (2); the upper and lower telescopic ends of the double-headed bidirectional cylinder (501) are respectively connected to bending rods (504); the bending rod (504) passes through the through slot on the mounting plate (2) and extends to the front of the mounting plate (2), and the end is connected to the positioning tube (503) through a rotating telescopic joint (502); the positioning tube (503) is the peripheral positioning end.

8. The tire grinding equipment according to claim 7, characterized in that: The inner periphery positioning assembly (6) comprises a transverse T-shaped frame (602) which moves horizontally in front of the second mounting plate (3); a second double-headed bidirectional cylinder (603) is located on the vertical section of the transverse T-shaped frame (602), and mounting brackets (607) are symmetrically arranged on the upper and lower telescopic ends; and a second positioning cylinder (604) is the inner periphery positioning end, which is rotatably arranged on the mounting bracket (607).

9. The tire grinding equipment according to claim 8, characterized in that: The second positioning tube (604) has a built-in exhaust dust collector, and the outer wall is staggered with ventilation holes (605) and polished protrusions (606); Positioning tube 1 (503) and positioning tube 2 (604) have the same structure.

10. A grinding method for tire processing, characterized in that: The tire grinding device according to claim 1 is used, and the steps are as follows: open one side of the U-shaped grinding chamber connected to the second mounting plate (3), and increase the distance between the first mounting plate (2) and the second mounting plate (3) as well as the distance between the inner grinding member (402) and the outer grinding member (401); bring the tire close to the second mounting plate (3), and extend the inner positioning assembly (6) up and down into the inner periphery of the tire to fix it; bring the first mounting plate (2) and the second mounting plate (3) close; extend the tire into the inner grinding member (402) and the outer grinding member (401); 01), the inner grinding piece (402) and the outer grinding piece (401) are brought close to form a U-shaped grinding cavity matching the tire; the U-shaped grinding cavity is sealed, and the outer positioning assembly (5) fixes the tire from the outer periphery; the outer positioning assembly (5) and the inner grinding piece (402) synchronously drive the tire to rotate; the inner grinding piece (402) and the outer grinding piece (401) grind the inside and outside of the rotating tire; during the grinding process, the width of the U-shaped grinding cavity is adjusted by moving the mounting plate 1 (2) and the mounting plate 2 (3).

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