Grinding equipment and method for tire processing

Abstract

The present invention relates to the field of tire processing, and in particular to a grinding device and method for tire processing. It includes an operating frame, a peripheral positioning assembly, an inner peripheral positioning assembly, and a grinding assembly. A horizontally movable mounting plate 1 is provided on one side of the operating frame, and a horizontally movable mounting plate 2 is provided on the other side; the peripheral positioning assembly is located on the mounting plate 1, and its peripheral positioning ends are arranged one above and one below; the inner peripheral positioning assembly is located on the mounting plate 2, and its inner peripheral positioning ends correspond to the outer peripheral positioning ends in a one-to-one manner; two groups of grinding assemblies are provided, 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. The present invention provides a detachable inner peripheral grinding part and an outer peripheral grinding part to cooperate to form a closed and size-adjustable U-shaped grinding chamber, so that tire grinding is comprehensive, flexible, efficient and precise.

Description

Technical Field

[0001] The present 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] Defect removal: During the tire production process, there may be some defects on the tire 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] Optimizing tread design: A tire's tread design is crucial to its grip, wear resistance, and driving stability. Grinding allows the tread to be refined to better meet design requirements, thereby improving the tire's overall performance.

[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] Chinese patent application CN219767628U discloses a tire sidewall grinding device comprising a sliding base mounted on a movable housing. The device utilizes a tire rotating mechanism, a button box, a dust removal mechanism, a grinding head, a tire, and a movable housing. The device places the tire on the rotating mechanism, activates the dust removal mechanism, the tire rotating mechanism, and the grinding head by pressing a button and a knob. The movable housing then controls the tool holder to move to the appropriate grinding position for each tire size.

[0008] Existing tire grinding technology primarily focuses on localized processing of the tire's outer perimeter, failing to process the interior. However, during tire production, defects such as bubbles, cracks, and impurities may develop on both the inner and outer surfaces. Furthermore, there's a lack of adjustability in the grinding position and range. Ultimately, this results in incomplete, inflexible, inefficient, and imprecise tire grinding, which in turn reduces tire quality and performance. Summary of the Invention

[0009] In response to the problems existing in the background technology, a grinding device and method for tire processing are proposed. The present invention provides a detachable inner grinding part and outer grinding part to form a closed and size-adjustable U-shaped grinding chamber, making tire grinding comprehensive, flexible, efficient and precise.

[0010] The present invention provides a grinding device for tire processing, comprising an operating frame, an outer peripheral positioning assembly, an inner peripheral positioning assembly, and a grinding assembly. A horizontally movable mounting plate 1 is provided on one side of the operating frame, and a horizontally movable mounting plate 2 is provided on the other side; the mounting plate 1 and the mounting plate 2 are positioned 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 around the outer periphery of the tire; the inner peripheral positioning assembly is located on the mounting plate 2, and its inner peripheral positioning ends correspond to the outer peripheral positioning ends one to one, and are driven to rotate synchronously by rotating around the inner periphery of the tire; two groups of grinding assemblies are provided, one in front and one in the back, and are located between the mounting plates 1 and 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; the 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 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 above and one below, and the two groups of horizontal sections are set to slide connection 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 and one below, and the two groups of horizontal sections are set to be slidingly connected to adjust the grinding width. The two groups of vertical sections on different sides are respectively rotatably connected to the mounting platform 2, and are connected to the driving member on the corresponding side through the mounting platform 2. 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 set of driving parts includes a screw that is rotatably connected to mounting plate one or mounting plate two; two sets of sliders that are threadedly connected to the screw and move in opposite directions are respectively provided at both ends of each set of screws; both sets of sliders are provided with a rotating mounting seat; 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 the 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 the through slot on the mounting plate and extends to the front of the mounting plate, and the end is connected to the 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-shaped 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-shaped 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 further provides a tire grinding method, using the aforementioned tire grinding equipment, with the following steps: opening one side of a U-shaped grinding chamber connected to mounting plate 2, widening the distance between mounting plate 1 and mounting plate 2, and widening the distance between the inner and outer grinding parts; placing the tire close to mounting plate 2, and inserting inner positioning assemblies one above and one below into the inner circumference of the tire to secure it; bringing mounting plate 1 and mounting plate 2 closer together; inserting the tire between the inner and outer grinding parts, bringing the inner and outer grinding parts closer together to form a U-shaped grinding chamber that matches the tire; sealing the U-shaped grinding chamber, while simultaneously securing the tire from the outer periphery with the outer positioning assembly; the outer positioning assembly and the inner grinding part synchronously drive the tire to rotate; the inner and outer grinding parts grind the rotating tire inside and out. During the grinding process, the width of the U-shaped grinding chamber is adjusted by moving mounting plate 1 and mounting plate 2.

[0020] Compared with the prior art, the present invention has the following beneficial technical effects: a detachable inner peripheral grinding part and an outer peripheral grinding part are provided to cooperate with each other to form a closed and size-adjustable U-shaped grinding chamber. 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 by moving the mounting plate 1 and the mounting plate 2 and rotating the inner grinding frame and the outer grinding frame, thereby adjusting the position and range of the grinding. The tire grinding is comprehensive, flexible, efficient and precise. The outer peripheral positioning assembly and the inner peripheral positioning assembly are provided to cooperate with each other. On the one hand, the positioning cylinder 1 and the positioning cylinder 2 are moved and rotated to support the tire from the inside and outside respectively and drive it to rotate. On the other hand, the grinding debris on the inner and outer peripheries of the tire are cleaned and collected. This not only improves the effect of tire grinding, but also reduces the cleaning workload of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0023] Figure 3 This is a schematic diagram of the disassembly of the tire processing grinding equipment of the present invention;

[0024] Figure 4 Schematic diagram of the structure of the grinding assembly in the present invention;

[0025] Figure 5 Schematic diagram of the splitting 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 Schematic diagram of the structure of the peripheral positioning component of the present invention;

[0029] Figure 9 Schematic diagram of the structure of the inner periphery positioning assembly in the present invention;

[0030] Figure 10 for Figure 9 Enlarged view of point C in the middle.

[0031] Reference numerals: 1, operating frame; 2, mounting plate 1; 3, mounting plate 2; 4, grinding assembly; 401, outer peripheral grinding member; 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 member; 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, screw; 5, peripheral positioning assembly; 501, double-headed bidirectional cylinder 1; 502, rotary expansion joint; 503, positioning cylinder 1; 504, bending rod; 6, inner peripheral positioning assembly; 601, cylinder 4; 602, T-shaped frame; 603, double-headed bidirectional cylinder 2; 604, positioning cylinder 2; 605, ventilation hole; 606, polishing protrusion; 607, mounting bracket; 7, cylinder 1; 8, cylinder 2. DETAILED DESCRIPTION

[0032] Example 1, as Figure 1-Figure 3As shown, the present invention provides a tire grinding device, comprising an operating frame 1, an outer peripheral positioning assembly 5, an inner peripheral positioning assembly 6, and a grinding assembly 4. One side of the operating frame 1 is provided with a mounting plate 1 2, which is driven horizontally by a cylinder 1 7, and the other side is provided with a mounting plate 2 3, which is driven horizontally by a cylinder 2 8. The mounting plates 1 2 and 2 3 are positioned parallel and opposite each other. The outer peripheral positioning assembly 5 is located on the mounting plate 1 2, with its outer peripheral positioning ends arranged one above the other, and driven to rotate synchronously by rotating around the tire's outer periphery. The inner peripheral positioning assembly 6 is located on the mounting plate 2 3, with its inner peripheral positioning ends corresponding to the outer peripheral positioning ends, and driven to rotate synchronously by rotating around the tire's inner periphery. Two grinding assemblies 4 are provided, one in front and one behind, between the mounting plates 1 2 and 2 3. Each grinding assembly 4 includes a detachable inner peripheral grinding member 402 and an outer peripheral grinding member 401. The inner peripheral grinding members 402 and 401 form a closed, 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; the 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 sets of external grinding frames 40102; the two sets of external grinding frames 40102 are movable double-layer U-shaped structures, stacked one on top of the other, with the two sets of horizontal segments configured for sliding connection to adjust the grinding width, and the two sets of vertical segments on different sides are respectively rotatably connected to the mounting platform 1 40101, and connected to the driving member 403 on the corresponding side through the mounting platform 1 40101, and the remaining two sets of vertical segments on different sides are suspended in the air to adjust the grinding angle; an external grinding knife 40104 is provided on the inner side wall of the double-layer U-shaped structure.

[0035] It should be further explained that a through slot is provided on the horizontal section of the outer grinding frame 40102, and a guide rod 1 40103 is provided in the through slot; the guide rod 1 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 platform 1 40101 to drive the outer grinding frame 40102 to rotate.

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

[0038] During grinding, the peripheral grinding width can be adjusted by horizontally moving the two sets of outer grinding frames 40102. The peripheral 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 sets of inner grinding frames 40202; the two sets of inner grinding frames 40202 are movable double-layer U-shaped structures, stacked one on top of the other, and the two sets of horizontal segments are set to slide to adjust the grinding width. The two sets of vertical segments 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. The remaining two sets of vertical segments on different sides are suspended in the air to adjust the grinding angle; an inner grinding knife 40204 is set on the outer wall of the double-layer U-shaped structure.

[0040] It should be further explained that a through slot is provided on the horizontal section of the inner grinding frame 40202, and a second guide rod 40203 is provided 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 provided 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 that matches the inner grinding frame 40202, and multiple layers are arranged in parallel.

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

[0044] like Figure 5 As shown, each set of driving parts 403 includes a screw 40303 driven by motor three to rotate and connect to mounting plate one 2 or mounting plate two 3; two sets of sliders 40301 are respectively provided at both ends of each set of screws 40303, which are threadedly connected thereto and move in opposite directions; both sets 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 the lead screw 40303 is provided with reverse threads to drive the two sets of sliders 40301 to move in opposite 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 the corresponding mounting seat 40302 by screws, so as to facilitate the installation and removal of the tire.

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

[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 ; teeth 40106 are provided on the friction enhancement strip 40105 .

[0049] When the mounting base 40302 rotates, it drives the inner grinding member 402 or the outer grinding member 401 to flip. The inner grinding member 402 flips away from the tire, while the outer grinding member 401 flips toward the tire. The friction-enhancing strips 40105 act on the tire's outer circumference, creating small textures on the tire surface. This increases friction between the tire and the road, thereby improving the tire's grip and driving stability. It can also be used to test tire hardness and wear resistance. The position and shape of the textures can be further adjusted by sliding and rotating the outer grinding blade 40104.

[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 expansion 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 Figure 9 As shown, the inner periphery positioning assembly 6 includes a horizontal T-shaped frame 602 driven by a cylinder 4 601 and moving horizontally in front of the mounting plate 2 3; a double-headed bidirectional cylinder 2 603 is located on the vertical section of the horizontal T-shaped frame 602, and mounting brackets 607 are symmetrically provided on the upper and lower telescopic ends; the positioning cylinder 2 604 is the inner periphery positioning end, which is driven by a motor 6 and is rotatably provided on the mounting bracket 607.

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

[0055] By horizontally moving the 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 Figure 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 positioning tube 1 503 and the positioning tube 2 604 have the same structure.

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

[0058] In the second embodiment, a grinding method for tire processing is proposed in this embodiment. The grinding device for tire processing described in the first embodiment is used, 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, and the mounting bracket 607 moves up and down. The second positioning cylinder 604 moves synchronously to fit the inner circumference of the tire, extending into the inner circumference of the tire one by one and fixing it in place.

[0062] S3, mounting plate 1 2 and mounting plate 2 3 are brought close together; 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 brought close together to form a U-shaped grinding cavity that matches 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. Connect the mounting seat 40302 on the suspended side to the corresponding inner grinding member 402 and outer grinding member 401 respectively to seal 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, positioning cylinder 1 503 and positioning cylinder 2 604 synchronously drive the tire to rotate;

[0066] S7: The inner grinding blade 40204 and the outer grinding blade 40104 grind the inner and outer sides of the rotating tire; the grinding protrusions 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 member 402 to flip away from the tire and the outer grinding member 401 to flip closer 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. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit 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 provided on one side of the operating frame (1), and a horizontally movable mounting plate 2 (3) is provided on the other side; the mounting plate 1 (2) and the mounting plate 2 (3) are positioned parallel to 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 and one below, and rotate around the tire to drive the tire to rotate synchronously; An inner circumference positioning assembly (6), the inner circumference positioning assembly (6) is located on the second mounting plate (3), and its inner circumference positioning end is matched with the outer circumference positioning end in a one-to-one manner, and drives the outer circumference to rotate synchronously by rotating on the inner circumference of the tire; and a grinding assembly (4), wherein the grinding assembly (4) is provided in two groups, one in front and one in the back, and is located between the first mounting plate (2) and the second mounting plate (3), and each group of grinding assemblies (4) includes a detachable inner peripheral grinding member (402) and an outer peripheral grinding member (401); the inner peripheral grinding member (402) and the outer peripheral grinding member (401) form a closed U-shaped grinding chamber with adjustable size; A driving member (403) is provided on both the first mounting plate (2) and the second mounting plate (3); the 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, thereby achieving the purpose of adjusting the spacing; The peripheral grinding member (401) includes two sets of external grinding frames (40102); the two sets of external grinding frames (40102) are movable double-layer U-shaped structures, one stacked on top of the other, and the two sets of horizontal sections are configured to be slidingly connected to adjust the grinding width. The two sets 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). The remaining two sets of vertical sections on different sides are suspended in the air to adjust the grinding angle; an external grinding knife (40104) is provided on the inner side wall of the double-layer U-shaped structure; The inner grinding member (402) includes two sets of inner grinding frames (40202); the two sets of inner grinding frames (40202) are movable double-layer U-shaped structures, stacked one above the other, with the two sets of horizontal sections configured to be slidingly connected to adjust the grinding width, and the two sets of vertical sections on different sides are respectively rotatably connected to the second mounting platform (40201) and connected to the driving member (403) on the corresponding side through the second mounting platform (40201), and the remaining two sets of vertical sections on different sides are suspended in the air to adjust the grinding angle; an inner grinding knife (40204) is provided on the outer side wall of the double-layer U-shaped structure; Each set of driving members (403) includes a lead screw (40303) rotatably connected to mounting plate 1 (2) or mounting plate 2 (3); two sets of sliders (40301) threadedly connected thereto and moving in opposite directions are respectively provided at both ends of each set of lead screws (40303); both sets of sliders (40301) are provided with a rotatable mounting seat (40302); mounting platform 1 (40101) and mounting platform 2 (40201) are respectively detachably connected to the corresponding mounting seat (40302); A friction enhancement strip (40105) is provided on a side of the external grinding frame (40102) away from the external grinding knife (40104); and teeth (40106) are provided on the friction enhancement strip (40105).

2. The tire grinding equipment according to claim 1, wherein: 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.

3. The tire grinding equipment according to claim 2, wherein: The inner periphery positioning assembly (6) includes a horizontal T-shaped frame (602) that 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 horizontal T-shaped frame (602), and a mounting bracket (607) is symmetrically provided on the upper and lower telescopic ends; the second positioning cylinder (604) is the inner periphery positioning end, and is rotatably provided on the mounting bracket (607).

4. The tire grinding equipment according to claim 3, wherein: The second positioning cylinder (604) has a built-in exhaust dust collector, and the outer wall is staggered with ventilation holes (605) and polishing protrusions (606); Positioning tube 1 (503) and positioning tube 2 (604) have the same structure.

5. A grinding method for tire processing, characterized in that: The tire processing grinding device according to claim 1 is used, and the steps are as follows: open one side of the U-shaped grinding cavity 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; and 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 that matches 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 positioning assembly (6) 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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